Home / 6,207.30-9,312.15-3,129.30

Finding the Fourth Proportional to 6,207.30, 9,312.15 and 3,129.30

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Solution

The fourth proportional to 6,207.30, 9,312.15 and 3,129.30 is: 4,694.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,207.30 : 9,312.15 = 3,129.30 : x
  2. Step 2: Convert to fraction form
    6,207.30/9,312.15 = 3,129.30/x
  3. Step 3: Cross multiply
    6,207.30x = 9,312.15 × 3,129.30
  4. Step 4: Simplify right side
    6,207.30x = 29,140,511.00
  5. Step 5: Solve for x
    x = 29,140,511.00/6,207.30
  6. Step 6: Final answer
    x = 4,694.55

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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.