Home / 5,287.14-7,288.92-3,792.42

Finding the Fourth Proportional to 5,287.14, 7,288.92 and 3,792.42

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Solution

The fourth proportional to 5,287.14, 7,288.92 and 3,792.42 is: 5,228.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.14 : 7,288.92 = 3,792.42 : x
  2. Step 2: Convert to fraction form
    5,287.14/7,288.92 = 3,792.42/x
  3. Step 3: Cross multiply
    5,287.14x = 7,288.92 × 3,792.42
  4. Step 4: Simplify right side
    5,287.14x = 27,642,645.99
  5. Step 5: Solve for x
    x = 27,642,645.99/5,287.14
  6. Step 6: Final answer
    x = 5,228.28

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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.