Home / 6,385.95-8,811.59-3,553.29

Finding the Fourth Proportional to 6,385.95, 8,811.59 and 3,553.29

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Solution

The fourth proportional to 6,385.95, 8,811.59 and 3,553.29 is: 4,902.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.95 : 8,811.59 = 3,553.29 : x
  2. Step 2: Convert to fraction form
    6,385.95/8,811.59 = 3,553.29/x
  3. Step 3: Cross multiply
    6,385.95x = 8,811.59 × 3,553.29
  4. Step 4: Simplify right side
    6,385.95x = 31,310,116.86
  5. Step 5: Solve for x
    x = 31,310,116.86/6,385.95
  6. Step 6: Final answer
    x = 4,902.97

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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.