Home / 7,549.97-10,419.28-4,192.78

Finding the Fourth Proportional to 7,549.97, 10,419.28 and 4,192.78

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Solution

The fourth proportional to 7,549.97, 10,419.28 and 4,192.78 is: 5,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,549.97 : 10,419.28 = 4,192.78 : x
  2. Step 2: Convert to fraction form
    7,549.97/10,419.28 = 4,192.78/x
  3. Step 3: Cross multiply
    7,549.97x = 10,419.28 × 4,192.78
  4. Step 4: Simplify right side
    7,549.97x = 43,685,712.27
  5. Step 5: Solve for x
    x = 43,685,712.27/7,549.97
  6. Step 6: Final answer
    x = 5,786.21

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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.