Home / 3,521.60-5,290.56-2,209.44

Finding the Fourth Proportional to 3,521.60, 5,290.56 and 2,209.44

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Solution

The fourth proportional to 3,521.60, 5,290.56 and 2,209.44 is: 3,319.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.60 : 5,290.56 = 2,209.44 : x
  2. Step 2: Convert to fraction form
    3,521.60/5,290.56 = 2,209.44/x
  3. Step 3: Cross multiply
    3,521.60x = 5,290.56 × 2,209.44
  4. Step 4: Simplify right side
    3,521.60x = 11,689,174.89
  5. Step 5: Solve for x
    x = 11,689,174.89/3,521.60
  6. Step 6: Final answer
    x = 3,319.28

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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.