Home / 5,151.48-7,727.84-3,861.16

Finding the Fourth Proportional to 5,151.48, 7,727.84 and 3,861.16

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Solution

The fourth proportional to 5,151.48, 7,727.84 and 3,861.16 is: 5,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.48 : 7,727.84 = 3,861.16 : x
  2. Step 2: Convert to fraction form
    5,151.48/7,727.84 = 3,861.16/x
  3. Step 3: Cross multiply
    5,151.48x = 7,727.84 × 3,861.16
  4. Step 4: Simplify right side
    5,151.48x = 29,838,426.69
  5. Step 5: Solve for x
    x = 29,838,426.69/5,151.48
  6. Step 6: Final answer
    x = 5,792.20

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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.