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Finding the Fourth Proportional to 2,487.02, 3,724.14 and 2,116.14

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Solution

The fourth proportional to 2,487.02, 3,724.14 and 2,116.14 is: 3,168.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.02 : 3,724.14 = 2,116.14 : x
  2. Step 2: Convert to fraction form
    2,487.02/3,724.14 = 2,116.14/x
  3. Step 3: Cross multiply
    2,487.02x = 3,724.14 × 2,116.14
  4. Step 4: Simplify right side
    2,487.02x = 7,880,795.59
  5. Step 5: Solve for x
    x = 7,880,795.59/2,487.02
  6. Step 6: Final answer
    x = 3,168.78

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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.