Home / 6,385.67-8,812.26-3,553.31

Finding the Fourth Proportional to 6,385.67, 8,812.26 and 3,553.31

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Solution

The fourth proportional to 6,385.67, 8,812.26 and 3,553.31 is: 4,903.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385.67 : 8,812.26 = 3,553.31 : x
  2. Step 2: Convert to fraction form
    6,385.67/8,812.26 = 3,553.31/x
  3. Step 3: Cross multiply
    6,385.67x = 8,812.26 × 3,553.31
  4. Step 4: Simplify right side
    6,385.67x = 31,312,691.58
  5. Step 5: Solve for x
    x = 31,312,691.58/6,385.67
  6. Step 6: Final answer
    x = 4,903.59

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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.