Home / 7,412.28-11,114.68-2,480.16

Finding the Fourth Proportional to 7,412.28, 11,114.68 and 2,480.16

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Solution

The fourth proportional to 7,412.28, 11,114.68 and 2,480.16 is: 3,718.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.28 : 11,114.68 = 2,480.16 : x
  2. Step 2: Convert to fraction form
    7,412.28/11,114.68 = 2,480.16/x
  3. Step 3: Cross multiply
    7,412.28x = 11,114.68 × 2,480.16
  4. Step 4: Simplify right side
    7,412.28x = 27,566,184.75
  5. Step 5: Solve for x
    x = 27,566,184.75/7,412.28
  6. Step 6: Final answer
    x = 3,718.99

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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.