Home / 2,929.13-4,391.18-1,079.90

Finding the Fourth Proportional to 2,929.13, 4,391.18 and 1,079.90

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Solution

The fourth proportional to 2,929.13, 4,391.18 and 1,079.90 is: 1,618.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.13 : 4,391.18 = 1,079.90 : x
  2. Step 2: Convert to fraction form
    2,929.13/4,391.18 = 1,079.90/x
  3. Step 3: Cross multiply
    2,929.13x = 4,391.18 × 1,079.90
  4. Step 4: Simplify right side
    2,929.13x = 4,742,028.44
  5. Step 5: Solve for x
    x = 4,742,028.44/2,929.13
  6. Step 6: Final answer
    x = 1,618.92

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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.