Home / 3,178.98-4,386.69-2,517.48

Finding the Fourth Proportional to 3,178.98, 4,386.69 and 2,517.48

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Solution

The fourth proportional to 3,178.98, 4,386.69 and 2,517.48 is: 3,473.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.98 : 4,386.69 = 2,517.48 : x
  2. Step 2: Convert to fraction form
    3,178.98/4,386.69 = 2,517.48/x
  3. Step 3: Cross multiply
    3,178.98x = 4,386.69 × 2,517.48
  4. Step 4: Simplify right side
    3,178.98x = 11,043,404.34
  5. Step 5: Solve for x
    x = 11,043,404.34/3,178.98
  6. Step 6: Final answer
    x = 3,473.88

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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.