Home / 1,512.11-2,086.71-849.00

Finding the Fourth Proportional to 1,512.11, 2,086.71 and 849.00

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Solution

The fourth proportional to 1,512.11, 2,086.71 and 849.00 is: 1,171.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.11 : 2,086.71 = 849.00 : x
  2. Step 2: Convert to fraction form
    1,512.11/2,086.71 = 849.00/x
  3. Step 3: Cross multiply
    1,512.11x = 2,086.71 × 849.00
  4. Step 4: Simplify right side
    1,512.11x = 1,771,613.50
  5. Step 5: Solve for x
    x = 1,771,613.50/1,512.11
  6. Step 6: Final answer
    x = 1,171.62

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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.