Home / 2,021.56-3,032.40-1,697.20

Finding the Fourth Proportional to 2,021.56, 3,032.40 and 1,697.20

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Solution

The fourth proportional to 2,021.56, 3,032.40 and 1,697.20 is: 2,545.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.56 : 3,032.40 = 1,697.20 : x
  2. Step 2: Convert to fraction form
    2,021.56/3,032.40 = 1,697.20/x
  3. Step 3: Cross multiply
    2,021.56x = 3,032.40 × 1,697.20
  4. Step 4: Simplify right side
    2,021.56x = 5,146,589.28
  5. Step 5: Solve for x
    x = 5,146,589.28/2,021.56
  6. Step 6: Final answer
    x = 2,545.85

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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.