Home / 1,512.30-2,087.04-849.12

Finding the Fourth Proportional to 1,512.30, 2,087.04 and 849.12

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Solution

The fourth proportional to 1,512.30, 2,087.04 and 849.12 is: 1,171.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.30 : 2,087.04 = 849.12 : x
  2. Step 2: Convert to fraction form
    1,512.30/2,087.04 = 849.12/x
  3. Step 3: Cross multiply
    1,512.30x = 2,087.04 × 849.12
  4. Step 4: Simplify right side
    1,512.30x = 1,772,147.40
  5. Step 5: Solve for x
    x = 1,772,147.40/1,512.30
  6. Step 6: Final answer
    x = 1,171.82

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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.