Home / 1,512.15-2,086.76-849.02

Finding the Fourth Proportional to 1,512.15, 2,086.76 and 849.02

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Solution

The fourth proportional to 1,512.15, 2,086.76 and 849.02 is: 1,171.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.15 : 2,086.76 = 849.02 : x
  2. Step 2: Convert to fraction form
    1,512.15/2,086.76 = 849.02/x
  3. Step 3: Cross multiply
    1,512.15x = 2,086.76 × 849.02
  4. Step 4: Simplify right side
    1,512.15x = 1,771,686.30
  5. Step 5: Solve for x
    x = 1,771,686.30/1,512.15
  6. Step 6: Final answer
    x = 1,171.63

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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.