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Finding the Fourth Proportional to 1,144.56, 1,716.84 and 759

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Solution

The fourth proportional to 1,144.56, 1,716.84 and 759 is: 1,138.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144.56 : 1,716.84 = 759 : x
  2. Step 2: Convert to fraction form
    1,144.56/1,716.84 = 759/x
  3. Step 3: Cross multiply
    1,144.56x = 1,716.84 × 759
  4. Step 4: Simplify right side
    1,144.56x = 1,303,081.56
  5. Step 5: Solve for x
    x = 1,303,081.56/1,144.56
  6. Step 6: Final answer
    x = 1,138.50

Related Problems

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Half scale
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Double scale
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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.