Home / 3,728.28-5,136.16-2,607.14

Finding the Fourth Proportional to 3,728.28, 5,136.16 and 2,607.14

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Solution

The fourth proportional to 3,728.28, 5,136.16 and 2,607.14 is: 3,591.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.28 : 5,136.16 = 2,607.14 : x
  2. Step 2: Convert to fraction form
    3,728.28/5,136.16 = 2,607.14/x
  3. Step 3: Cross multiply
    3,728.28x = 5,136.16 × 2,607.14
  4. Step 4: Simplify right side
    3,728.28x = 13,390,688.18
  5. Step 5: Solve for x
    x = 13,390,688.18/3,728.28
  6. Step 6: Final answer
    x = 3,591.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.