Home / 6,290.80-8,666.31-4,398.85

Finding the Fourth Proportional to 6,290.80, 8,666.31 and 4,398.85

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Solution

The fourth proportional to 6,290.80, 8,666.31 and 4,398.85 is: 6,059.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290.80 : 8,666.31 = 4,398.85 : x
  2. Step 2: Convert to fraction form
    6,290.80/8,666.31 = 4,398.85/x
  3. Step 3: Cross multiply
    6,290.80x = 8,666.31 × 4,398.85
  4. Step 4: Simplify right side
    6,290.80x = 38,121,732.42
  5. Step 5: Solve for x
    x = 38,121,732.42/6,290.80
  6. Step 6: Final answer
    x = 6,059.92

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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.