Home / 4,231.30-6,336.15-3,129.70

Finding the Fourth Proportional to 4,231.30, 6,336.15 and 3,129.70

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Solution

The fourth proportional to 4,231.30, 6,336.15 and 3,129.70 is: 4,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,231.30 : 6,336.15 = 3,129.70 : x
  2. Step 2: Convert to fraction form
    4,231.30/6,336.15 = 3,129.70/x
  3. Step 3: Cross multiply
    4,231.30x = 6,336.15 × 3,129.70
  4. Step 4: Simplify right side
    4,231.30x = 19,830,248.66
  5. Step 5: Solve for x
    x = 19,830,248.66/4,231.30
  6. Step 6: Final answer
    x = 4,686.56

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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.