Home / 7,750.13-11,630.15-2,819.30

Finding the Fourth Proportional to 7,750.13, 11,630.15 and 2,819.30

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Solution

The fourth proportional to 7,750.13, 11,630.15 and 2,819.30 is: 4,230.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,750.13 : 11,630.15 = 2,819.30 : x
  2. Step 2: Convert to fraction form
    7,750.13/11,630.15 = 2,819.30/x
  3. Step 3: Cross multiply
    7,750.13x = 11,630.15 × 2,819.30
  4. Step 4: Simplify right side
    7,750.13x = 32,788,881.90
  5. Step 5: Solve for x
    x = 32,788,881.90/7,750.13
  6. Step 6: Final answer
    x = 4,230.75

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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.