Home / 3,279.40-4,919.84-1,058.23

Finding the Fourth Proportional to 3,279.40, 4,919.84 and 1,058.23

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Solution

The fourth proportional to 3,279.40, 4,919.84 and 1,058.23 is: 1,587.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.40 : 4,919.84 = 1,058.23 : x
  2. Step 2: Convert to fraction form
    3,279.40/4,919.84 = 1,058.23/x
  3. Step 3: Cross multiply
    3,279.40x = 4,919.84 × 1,058.23
  4. Step 4: Simplify right side
    3,279.40x = 5,206,306.35
  5. Step 5: Solve for x
    x = 5,206,306.35/3,279.40
  6. Step 6: Final answer
    x = 1,587.58

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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.