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Finding the Fourth Proportional to 3,249.78, 4,874.17 and 1,058.50

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Solution

The fourth proportional to 3,249.78, 4,874.17 and 1,058.50 is: 1,587.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,249.78 : 4,874.17 = 1,058.50 : x
  2. Step 2: Convert to fraction form
    3,249.78/4,874.17 = 1,058.50/x
  3. Step 3: Cross multiply
    3,249.78x = 4,874.17 × 1,058.50
  4. Step 4: Simplify right side
    3,249.78x = 5,159,303.65
  5. Step 5: Solve for x
    x = 5,159,303.65/3,249.78
  6. Step 6: Final answer
    x = 1,587.59

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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.