Home / 1,549.18-2,137.83-876.97

Finding the Fourth Proportional to 1,549.18, 2,137.83 and 876.97

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Solution

The fourth proportional to 1,549.18, 2,137.83 and 876.97 is: 1,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.18 : 2,137.83 = 876.97 : x
  2. Step 2: Convert to fraction form
    1,549.18/2,137.83 = 876.97/x
  3. Step 3: Cross multiply
    1,549.18x = 2,137.83 × 876.97
  4. Step 4: Simplify right side
    1,549.18x = 1,874,812.78
  5. Step 5: Solve for x
    x = 1,874,812.78/1,549.18
  6. Step 6: Final answer
    x = 1,210.20

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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.