Home / 2,512.18-3,470.04-1,929.88

Finding the Fourth Proportional to 2,512.18, 3,470.04 and 1,929.88

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Solution

The fourth proportional to 2,512.18, 3,470.04 and 1,929.88 is: 2,665.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.18 : 3,470.04 = 1,929.88 : x
  2. Step 2: Convert to fraction form
    2,512.18/3,470.04 = 1,929.88/x
  3. Step 3: Cross multiply
    2,512.18x = 3,470.04 × 1,929.88
  4. Step 4: Simplify right side
    2,512.18x = 6,696,760.80
  5. Step 5: Solve for x
    x = 6,696,760.80/2,512.18
  6. Step 6: Final answer
    x = 2,665.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.