Home / 3,279.93-4,920.21-1,058.20

Finding the Fourth Proportional to 3,279.93, 4,920.21 and 1,058.20

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Solution

The fourth proportional to 3,279.93, 4,920.21 and 1,058.20 is: 1,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.93 : 4,920.21 = 1,058.20 : x
  2. Step 2: Convert to fraction form
    3,279.93/4,920.21 = 1,058.20/x
  3. Step 3: Cross multiply
    3,279.93x = 4,920.21 × 1,058.20
  4. Step 4: Simplify right side
    3,279.93x = 5,206,553.92
  5. Step 5: Solve for x
    x = 5,206,553.92/3,279.93
  6. Step 6: Final answer
    x = 1,587.40

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1.5x scale

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.