Home / 3,961.90-5,468.12-2,547.34

Finding the Fourth Proportional to 3,961.90, 5,468.12 and 2,547.34

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Solution

The fourth proportional to 3,961.90, 5,468.12 and 2,547.34 is: 3,515.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.90 : 5,468.12 = 2,547.34 : x
  2. Step 2: Convert to fraction form
    3,961.90/5,468.12 = 2,547.34/x
  3. Step 3: Cross multiply
    3,961.90x = 5,468.12 × 2,547.34
  4. Step 4: Simplify right side
    3,961.90x = 13,929,160.80
  5. Step 5: Solve for x
    x = 13,929,160.80/3,961.90
  6. Step 6: Final answer
    x = 3,515.78

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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.