Home / 6,390.68-9,588.45-3,272.18

Finding the Fourth Proportional to 6,390.68, 9,588.45 and 3,272.18

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Solution

The fourth proportional to 6,390.68, 9,588.45 and 3,272.18 is: 4,909.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.68 : 9,588.45 = 3,272.18 : x
  2. Step 2: Convert to fraction form
    6,390.68/9,588.45 = 3,272.18/x
  3. Step 3: Cross multiply
    6,390.68x = 9,588.45 × 3,272.18
  4. Step 4: Simplify right side
    6,390.68x = 31,375,134.32
  5. Step 5: Solve for x
    x = 31,375,134.32/6,390.68
  6. Step 6: Final answer
    x = 4,909.51

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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.