Home / 3,521.78-5,271.73-2,220.52

Finding the Fourth Proportional to 3,521.78, 5,271.73 and 2,220.52

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Solution

The fourth proportional to 3,521.78, 5,271.73 and 2,220.52 is: 3,323.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.78 : 5,271.73 = 2,220.52 : x
  2. Step 2: Convert to fraction form
    3,521.78/5,271.73 = 2,220.52/x
  3. Step 3: Cross multiply
    3,521.78x = 5,271.73 × 2,220.52
  4. Step 4: Simplify right side
    3,521.78x = 11,705,981.90
  5. Step 5: Solve for x
    x = 11,705,981.90/3,521.78
  6. Step 6: Final answer
    x = 3,323.88

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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.