Home / 2,116.43-3,174.31-710.88

Finding the Fourth Proportional to 2,116.43, 3,174.31 and 710.88

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Solution

The fourth proportional to 2,116.43, 3,174.31 and 710.88 is: 1,066.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116.43 : 3,174.31 = 710.88 : x
  2. Step 2: Convert to fraction form
    2,116.43/3,174.31 = 710.88/x
  3. Step 3: Cross multiply
    2,116.43x = 3,174.31 × 710.88
  4. Step 4: Simplify right side
    2,116.43x = 2,256,553.49
  5. Step 5: Solve for x
    x = 2,256,553.49/2,116.43
  6. Step 6: Final answer
    x = 1,066.21

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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.