Home / 3,451.40-5,176.55-1,142.90

Finding the Fourth Proportional to 3,451.40, 5,176.55 and 1,142.90

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Solution

The fourth proportional to 3,451.40, 5,176.55 and 1,142.90 is: 1,714.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.40 : 5,176.55 = 1,142.90 : x
  2. Step 2: Convert to fraction form
    3,451.40/5,176.55 = 1,142.90/x
  3. Step 3: Cross multiply
    3,451.40x = 5,176.55 × 1,142.90
  4. Step 4: Simplify right side
    3,451.40x = 5,916,255.97
  5. Step 5: Solve for x
    x = 5,916,255.97/3,451.40
  6. Step 6: Final answer
    x = 1,714.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.