Home / 7,184.28-9,915.14-4,039.86

Finding the Fourth Proportional to 7,184.28, 9,915.14 and 4,039.86

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Solution

The fourth proportional to 7,184.28, 9,915.14 and 4,039.86 is: 5,575.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,184.28 : 9,915.14 = 4,039.86 : x
  2. Step 2: Convert to fraction form
    7,184.28/9,915.14 = 4,039.86/x
  3. Step 3: Cross multiply
    7,184.28x = 9,915.14 × 4,039.86
  4. Step 4: Simplify right side
    7,184.28x = 40,055,777.48
  5. Step 5: Solve for x
    x = 40,055,777.48/7,184.28
  6. Step 6: Final answer
    x = 5,575.48

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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.