Home / 8,920.24-13,379.88-2,764.08

Finding the Fourth Proportional to 8,920.24, 13,379.88 and 2,764.08

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Solution

The fourth proportional to 8,920.24, 13,379.88 and 2,764.08 is: 4,145.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.24 : 13,379.88 = 2,764.08 : x
  2. Step 2: Convert to fraction form
    8,920.24/13,379.88 = 2,764.08/x
  3. Step 3: Cross multiply
    8,920.24x = 13,379.88 × 2,764.08
  4. Step 4: Simplify right side
    8,920.24x = 36,983,058.71
  5. Step 5: Solve for x
    x = 36,983,058.71/8,920.24
  6. Step 6: Final answer
    x = 4,145.97

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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.