Home / 2,020.24-3,030.40-979.04

Finding the Fourth Proportional to 2,020.24, 3,030.40 and 979.04

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Solution

The fourth proportional to 2,020.24, 3,030.40 and 979.04 is: 1,468.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.24 : 3,030.40 = 979.04 : x
  2. Step 2: Convert to fraction form
    2,020.24/3,030.40 = 979.04/x
  3. Step 3: Cross multiply
    2,020.24x = 3,030.40 × 979.04
  4. Step 4: Simplify right side
    2,020.24x = 2,966,882.82
  5. Step 5: Solve for x
    x = 2,966,882.82/2,020.24
  6. Step 6: Final answer
    x = 1,468.58

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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.