Home / 2,020.50-3,030.40-559.26

Finding the Fourth Proportional to 2,020.50, 3,030.40 and 559.26

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Solution

The fourth proportional to 2,020.50, 3,030.40 and 559.26 is: 838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.50 : 3,030.40 = 559.26 : x
  2. Step 2: Convert to fraction form
    2,020.50/3,030.40 = 559.26/x
  3. Step 3: Cross multiply
    2,020.50x = 3,030.40 × 559.26
  4. Step 4: Simplify right side
    2,020.50x = 1,694,781.50
  5. Step 5: Solve for x
    x = 1,694,781.50/2,020.50
  6. Step 6: Final answer
    x = 838.79

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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.