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Finding the Fourth Proportional to 6,390.60, 9,582.65 and 2,924.88

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Solution

The fourth proportional to 6,390.60, 9,582.65 and 2,924.88 is: 4,385.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.60 : 9,582.65 = 2,924.88 : x
  2. Step 2: Convert to fraction form
    6,390.60/9,582.65 = 2,924.88/x
  3. Step 3: Cross multiply
    6,390.60x = 9,582.65 × 2,924.88
  4. Step 4: Simplify right side
    6,390.60x = 28,028,101.33
  5. Step 5: Solve for x
    x = 28,028,101.33/6,390.60
  6. Step 6: Final answer
    x = 4,385.83

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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.