Home / 5,247.96-7,871.28-1,550.12

Finding the Fourth Proportional to 5,247.96, 7,871.28 and 1,550.12

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Solution

The fourth proportional to 5,247.96, 7,871.28 and 1,550.12 is: 2,324.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.96 : 7,871.28 = 1,550.12 : x
  2. Step 2: Convert to fraction form
    5,247.96/7,871.28 = 1,550.12/x
  3. Step 3: Cross multiply
    5,247.96x = 7,871.28 × 1,550.12
  4. Step 4: Simplify right side
    5,247.96x = 12,201,428.55
  5. Step 5: Solve for x
    x = 12,201,428.55/5,247.96
  6. Step 6: Final answer
    x = 2,324.99

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Half scale
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Double scale
Find fourth proportional to 5,248.96, 7,872.78 and 1,551.12
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.