Home / 6,489.20-9,733.38-2,590.80

Finding the Fourth Proportional to 6,489.20, 9,733.38 and 2,590.80

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Solution

The fourth proportional to 6,489.20, 9,733.38 and 2,590.80 is: 3,886.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489.20 : 9,733.38 = 2,590.80 : x
  2. Step 2: Convert to fraction form
    6,489.20/9,733.38 = 2,590.80/x
  3. Step 3: Cross multiply
    6,489.20x = 9,733.38 × 2,590.80
  4. Step 4: Simplify right side
    6,489.20x = 25,217,240.90
  5. Step 5: Solve for x
    x = 25,217,240.90/6,489.20
  6. Step 6: Final answer
    x = 3,886.04

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1.5x scale

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.