Home / 5,521.85-7,620.08-3,003.91

Finding the Fourth Proportional to 5,521.85, 7,620.08 and 3,003.91

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Solution

The fourth proportional to 5,521.85, 7,620.08 and 3,003.91 is: 4,145.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.85 : 7,620.08 = 3,003.91 : x
  2. Step 2: Convert to fraction form
    5,521.85/7,620.08 = 3,003.91/x
  3. Step 3: Cross multiply
    5,521.85x = 7,620.08 × 3,003.91
  4. Step 4: Simplify right side
    5,521.85x = 22,890,000.44
  5. Step 5: Solve for x
    x = 22,890,000.44/5,521.85
  6. Step 6: Final answer
    x = 4,145.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.