Home / 1,512.43-2,087.12-849.35

Finding the Fourth Proportional to 1,512.43, 2,087.12 and 849.35

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Solution

The fourth proportional to 1,512.43, 2,087.12 and 849.35 is: 1,172.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.43 : 2,087.12 = 849.35 : x
  2. Step 2: Convert to fraction form
    1,512.43/2,087.12 = 849.35/x
  3. Step 3: Cross multiply
    1,512.43x = 2,087.12 × 849.35
  4. Step 4: Simplify right side
    1,512.43x = 1,772,702.71
  5. Step 5: Solve for x
    x = 1,772,702.71/1,512.43
  6. Step 6: Final answer
    x = 1,172.09

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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.