Home / 3,101.12-4,651.20-2,929.76

Finding the Fourth Proportional to 3,101.12, 4,651.20 and 2,929.76

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Solution

The fourth proportional to 3,101.12, 4,651.20 and 2,929.76 is: 4,394.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.12 : 4,651.20 = 2,929.76 : x
  2. Step 2: Convert to fraction form
    3,101.12/4,651.20 = 2,929.76/x
  3. Step 3: Cross multiply
    3,101.12x = 4,651.20 × 2,929.76
  4. Step 4: Simplify right side
    3,101.12x = 13,626,899.71
  5. Step 5: Solve for x
    x = 13,626,899.71/3,101.12
  6. Step 6: Final answer
    x = 4,394.19

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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.