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Finding the Fourth Proportional to 1,874.06, 2,809.51 and 1,255.88

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Solution

The fourth proportional to 1,874.06, 2,809.51 and 1,255.88 is: 1,882.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.06 : 2,809.51 = 1,255.88 : x
  2. Step 2: Convert to fraction form
    1,874.06/2,809.51 = 1,255.88/x
  3. Step 3: Cross multiply
    1,874.06x = 2,809.51 × 1,255.88
  4. Step 4: Simplify right side
    1,874.06x = 3,528,390.23
  5. Step 5: Solve for x
    x = 3,528,390.23/1,874.06
  6. Step 6: Final answer
    x = 1,882.75

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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.