Home / 3,129.59-4,695.68-1,373.69

Finding the Fourth Proportional to 3,129.59, 4,695.68 and 1,373.69

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Solution

The fourth proportional to 3,129.59, 4,695.68 and 1,373.69 is: 2,061.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.59 : 4,695.68 = 1,373.69 : x
  2. Step 2: Convert to fraction form
    3,129.59/4,695.68 = 1,373.69/x
  3. Step 3: Cross multiply
    3,129.59x = 4,695.68 × 1,373.69
  4. Step 4: Simplify right side
    3,129.59x = 6,450,423.83
  5. Step 5: Solve for x
    x = 6,450,423.83/3,129.59
  6. Step 6: Final answer
    x = 2,061.11

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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.