Home / 7,185.52-9,915.92-4,041.71

Finding the Fourth Proportional to 7,185.52, 9,915.92 and 4,041.71

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Solution

The fourth proportional to 7,185.52, 9,915.92 and 4,041.71 is: 5,577.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,185.52 : 9,915.92 = 4,041.71 : x
  2. Step 2: Convert to fraction form
    7,185.52/9,915.92 = 4,041.71/x
  3. Step 3: Cross multiply
    7,185.52x = 9,915.92 × 4,041.71
  4. Step 4: Simplify right side
    7,185.52x = 40,077,273.02
  5. Step 5: Solve for x
    x = 40,077,273.02/7,185.52
  6. Step 6: Final answer
    x = 5,577.50

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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.