Home / 7,691.72-10,615.38-4,548.20

Finding the Fourth Proportional to 7,691.72, 10,615.38 and 4,548.20

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Solution

The fourth proportional to 7,691.72, 10,615.38 and 4,548.20 is: 6,276.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.72 : 10,615.38 = 4,548.20 : x
  2. Step 2: Convert to fraction form
    7,691.72/10,615.38 = 4,548.20/x
  3. Step 3: Cross multiply
    7,691.72x = 10,615.38 × 4,548.20
  4. Step 4: Simplify right side
    7,691.72x = 48,280,871.32
  5. Step 5: Solve for x
    x = 48,280,871.32/7,691.72
  6. Step 6: Final answer
    x = 6,276.99

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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.