Home / 3,078.28-4,248.12-1,752.18

Finding the Fourth Proportional to 3,078.28, 4,248.12 and 1,752.18

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Solution

The fourth proportional to 3,078.28, 4,248.12 and 1,752.18 is: 2,418.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.28 : 4,248.12 = 1,752.18 : x
  2. Step 2: Convert to fraction form
    3,078.28/4,248.12 = 1,752.18/x
  3. Step 3: Cross multiply
    3,078.28x = 4,248.12 × 1,752.18
  4. Step 4: Simplify right side
    3,078.28x = 7,443,470.90
  5. Step 5: Solve for x
    x = 7,443,470.90/3,078.28
  6. Step 6: Final answer
    x = 2,418.06

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1.5x scale

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.