Home / 1,872.72-2,583.70-1,126.10

Finding the Fourth Proportional to 1,872.72, 2,583.70 and 1,126.10

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Solution

The fourth proportional to 1,872.72, 2,583.70 and 1,126.10 is: 1,553.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.72 : 2,583.70 = 1,126.10 : x
  2. Step 2: Convert to fraction form
    1,872.72/2,583.70 = 1,126.10/x
  3. Step 3: Cross multiply
    1,872.72x = 2,583.70 × 1,126.10
  4. Step 4: Simplify right side
    1,872.72x = 2,909,508.21
  5. Step 5: Solve for x
    x = 2,909,508.21/1,872.72
  6. Step 6: Final answer
    x = 1,553.63

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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.