Home / 1,872.38-2,583.20-1,126.58

Finding the Fourth Proportional to 1,872.38, 2,583.20 and 1,126.58

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Solution

The fourth proportional to 1,872.38, 2,583.20 and 1,126.58 is: 1,554.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872.38 : 2,583.20 = 1,126.58 : x
  2. Step 2: Convert to fraction form
    1,872.38/2,583.20 = 1,126.58/x
  3. Step 3: Cross multiply
    1,872.38x = 2,583.20 × 1,126.58
  4. Step 4: Simplify right side
    1,872.38x = 2,910,181.46
  5. Step 5: Solve for x
    x = 2,910,181.46/1,872.38
  6. Step 6: Final answer
    x = 1,554.27

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1.5x scale

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.