Home / 3,102.32-4,656.22-2,615.72

Finding the Fourth Proportional to 3,102.32, 4,656.22 and 2,615.72

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Solution

The fourth proportional to 3,102.32, 4,656.22 and 2,615.72 is: 3,925.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.32 : 4,656.22 = 2,615.72 : x
  2. Step 2: Convert to fraction form
    3,102.32/4,656.22 = 2,615.72/x
  3. Step 3: Cross multiply
    3,102.32x = 4,656.22 × 2,615.72
  4. Step 4: Simplify right side
    3,102.32x = 12,179,337.96
  5. Step 5: Solve for x
    x = 12,179,337.96/3,102.32
  6. Step 6: Final answer
    x = 3,925.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.