Home / 5,538.97-7,638.65-4,126.12

Finding the Fourth Proportional to 5,538.97, 7,638.65 and 4,126.12

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Solution

The fourth proportional to 5,538.97, 7,638.65 and 4,126.12 is: 5,690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.97 : 7,638.65 = 4,126.12 : x
  2. Step 2: Convert to fraction form
    5,538.97/7,638.65 = 4,126.12/x
  3. Step 3: Cross multiply
    5,538.97x = 7,638.65 × 4,126.12
  4. Step 4: Simplify right side
    5,538.97x = 31,517,965.91
  5. Step 5: Solve for x
    x = 31,517,965.91/5,538.97
  6. Step 6: Final answer
    x = 5,690.22

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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.