Home / 2,929.15-4,391.07-1,079

Finding the Fourth Proportional to 2,929.15, 4,391.07 and 1,079

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Solution

The fourth proportional to 2,929.15, 4,391.07 and 1,079 is: 1,617.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.15 : 4,391.07 = 1,079 : x
  2. Step 2: Convert to fraction form
    2,929.15/4,391.07 = 1,079/x
  3. Step 3: Cross multiply
    2,929.15x = 4,391.07 × 1,079
  4. Step 4: Simplify right side
    2,929.15x = 4,737,964.53
  5. Step 5: Solve for x
    x = 4,737,964.53/2,929.15
  6. Step 6: Final answer
    x = 1,617.52

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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.