Home / 7,079.04-10,612.62-3,129.66

Finding the Fourth Proportional to 7,079.04, 10,612.62 and 3,129.66

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Solution

The fourth proportional to 7,079.04, 10,612.62 and 3,129.66 is: 4,691.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.04 : 10,612.62 = 3,129.66 : x
  2. Step 2: Convert to fraction form
    7,079.04/10,612.62 = 3,129.66/x
  3. Step 3: Cross multiply
    7,079.04x = 10,612.62 × 3,129.66
  4. Step 4: Simplify right side
    7,079.04x = 33,213,892.31
  5. Step 5: Solve for x
    x = 33,213,892.31/7,079.04
  6. Step 6: Final answer
    x = 4,691.86

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1.5x scale

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.