Home / 6,656.59-9,185.25-4,139.11

Finding the Fourth Proportional to 6,656.59, 9,185.25 and 4,139.11

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Solution

The fourth proportional to 6,656.59, 9,185.25 and 4,139.11 is: 5,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.59 : 9,185.25 = 4,139.11 : x
  2. Step 2: Convert to fraction form
    6,656.59/9,185.25 = 4,139.11/x
  3. Step 3: Cross multiply
    6,656.59x = 9,185.25 × 4,139.11
  4. Step 4: Simplify right side
    6,656.59x = 38,018,760.13
  5. Step 5: Solve for x
    x = 38,018,760.13/6,656.59
  6. Step 6: Final answer
    x = 5,711.45

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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.