Home / 3,078.82-4,248.28-1,752.55

Finding the Fourth Proportional to 3,078.82, 4,248.28 and 1,752.55

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Solution

The fourth proportional to 3,078.82, 4,248.28 and 1,752.55 is: 2,418.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.82 : 4,248.28 = 1,752.55 : x
  2. Step 2: Convert to fraction form
    3,078.82/4,248.28 = 1,752.55/x
  3. Step 3: Cross multiply
    3,078.82x = 4,248.28 × 1,752.55
  4. Step 4: Simplify right side
    3,078.82x = 7,445,323.11
  5. Step 5: Solve for x
    x = 7,445,323.11/3,078.82
  6. Step 6: Final answer
    x = 2,418.24

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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.