Home / 4,129.22-6,189.50-1,355.18

Finding the Fourth Proportional to 4,129.22, 6,189.50 and 1,355.18

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Solution

The fourth proportional to 4,129.22, 6,189.50 and 1,355.18 is: 2,031.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.22 : 6,189.50 = 1,355.18 : x
  2. Step 2: Convert to fraction form
    4,129.22/6,189.50 = 1,355.18/x
  3. Step 3: Cross multiply
    4,129.22x = 6,189.50 × 1,355.18
  4. Step 4: Simplify right side
    4,129.22x = 8,387,886.61
  5. Step 5: Solve for x
    x = 8,387,886.61/4,129.22
  6. Step 6: Final answer
    x = 2,031.35

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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.