Home / 7,126.97-9,832.82-4,140.36

Finding the Fourth Proportional to 7,126.97, 9,832.82 and 4,140.36

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Solution

The fourth proportional to 7,126.97, 9,832.82 and 4,140.36 is: 5,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.97 : 9,832.82 = 4,140.36 : x
  2. Step 2: Convert to fraction form
    7,126.97/9,832.82 = 4,140.36/x
  3. Step 3: Cross multiply
    7,126.97x = 9,832.82 × 4,140.36
  4. Step 4: Simplify right side
    7,126.97x = 40,711,393.91
  5. Step 5: Solve for x
    x = 40,711,393.91/7,126.97
  6. Step 6: Final answer
    x = 5,712.30

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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.