Home / 7,312.60-10,964.85-3,151.90

Finding the Fourth Proportional to 7,312.60, 10,964.85 and 3,151.90

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Solution

The fourth proportional to 7,312.60, 10,964.85 and 3,151.90 is: 4,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.60 : 10,964.85 = 3,151.90 : x
  2. Step 2: Convert to fraction form
    7,312.60/10,964.85 = 3,151.90/x
  3. Step 3: Cross multiply
    7,312.60x = 10,964.85 × 3,151.90
  4. Step 4: Simplify right side
    7,312.60x = 34,560,110.72
  5. Step 5: Solve for x
    x = 34,560,110.72/7,312.60
  6. Step 6: Final answer
    x = 4,726.10

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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.