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Finding the Fourth Proportional to 5,144.57, 7,716.78 and 1,249.01

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Solution

The fourth proportional to 5,144.57, 7,716.78 and 1,249.01 is: 1,873.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.57 : 7,716.78 = 1,249.01 : x
  2. Step 2: Convert to fraction form
    5,144.57/7,716.78 = 1,249.01/x
  3. Step 3: Cross multiply
    5,144.57x = 7,716.78 × 1,249.01
  4. Step 4: Simplify right side
    5,144.57x = 9,638,296.80
  5. Step 5: Solve for x
    x = 9,638,296.80/5,144.57
  6. Step 6: Final answer
    x = 1,873.49

Related Problems

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Half scale
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Double scale
Find fourth proportional to 5,145.57, 7,718.28 and 1,250.01
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.