Home / 1,512.45-2,087.30-849.36

Finding the Fourth Proportional to 1,512.45, 2,087.30 and 849.36

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Solution

The fourth proportional to 1,512.45, 2,087.30 and 849.36 is: 1,172.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.45 : 2,087.30 = 849.36 : x
  2. Step 2: Convert to fraction form
    1,512.45/2,087.30 = 849.36/x
  3. Step 3: Cross multiply
    1,512.45x = 2,087.30 × 849.36
  4. Step 4: Simplify right side
    1,512.45x = 1,772,869.13
  5. Step 5: Solve for x
    x = 1,772,869.13/1,512.45
  6. Step 6: Final answer
    x = 1,172.18

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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.