Home / 1,512.49-2,269.19-1,251.31

Finding the Fourth Proportional to 1,512.49, 2,269.19 and 1,251.31

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Solution

The fourth proportional to 1,512.49, 2,269.19 and 1,251.31 is: 1,877.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.49 : 2,269.19 = 1,251.31 : x
  2. Step 2: Convert to fraction form
    1,512.49/2,269.19 = 1,251.31/x
  3. Step 3: Cross multiply
    1,512.49x = 2,269.19 × 1,251.31
  4. Step 4: Simplify right side
    1,512.49x = 2,839,460.14
  5. Step 5: Solve for x
    x = 2,839,460.14/1,512.49
  6. Step 6: Final answer
    x = 1,877.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.