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Finding the Fourth Proportional to 2,899.81, 4,347.62 and 1,255.44

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Solution

The fourth proportional to 2,899.81, 4,347.62 and 1,255.44 is: 1,882.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.81 : 4,347.62 = 1,255.44 : x
  2. Step 2: Convert to fraction form
    2,899.81/4,347.62 = 1,255.44/x
  3. Step 3: Cross multiply
    2,899.81x = 4,347.62 × 1,255.44
  4. Step 4: Simplify right side
    2,899.81x = 5,458,176.05
  5. Step 5: Solve for x
    x = 5,458,176.05/2,899.81
  6. Step 6: Final answer
    x = 1,882.25

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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.