Home / 6,432.18-8,876.49-3,779.64

Finding the Fourth Proportional to 6,432.18, 8,876.49 and 3,779.64

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Solution

The fourth proportional to 6,432.18, 8,876.49 and 3,779.64 is: 5,215.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.18 : 8,876.49 = 3,779.64 : x
  2. Step 2: Convert to fraction form
    6,432.18/8,876.49 = 3,779.64/x
  3. Step 3: Cross multiply
    6,432.18x = 8,876.49 × 3,779.64
  4. Step 4: Simplify right side
    6,432.18x = 33,549,936.66
  5. Step 5: Solve for x
    x = 33,549,936.66/6,432.18
  6. Step 6: Final answer
    x = 5,215.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.