Home / 5,521.76-7,620.12-3,003.92

Finding the Fourth Proportional to 5,521.76, 7,620.12 and 3,003.92

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Solution

The fourth proportional to 5,521.76, 7,620.12 and 3,003.92 is: 4,145.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.76 : 7,620.12 = 3,003.92 : x
  2. Step 2: Convert to fraction form
    5,521.76/7,620.12 = 3,003.92/x
  3. Step 3: Cross multiply
    5,521.76x = 7,620.12 × 3,003.92
  4. Step 4: Simplify right side
    5,521.76x = 22,890,221.35
  5. Step 5: Solve for x
    x = 22,890,221.35/5,521.76
  6. Step 6: Final answer
    x = 4,145.46

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1.5x scale

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.