Home / 3,020.69-4,531.44-2,081.90

Finding the Fourth Proportional to 3,020.69, 4,531.44 and 2,081.90

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Solution

The fourth proportional to 3,020.69, 4,531.44 and 2,081.90 is: 3,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.69 : 4,531.44 = 2,081.90 : x
  2. Step 2: Convert to fraction form
    3,020.69/4,531.44 = 2,081.90/x
  3. Step 3: Cross multiply
    3,020.69x = 4,531.44 × 2,081.90
  4. Step 4: Simplify right side
    3,020.69x = 9,434,024.07
  5. Step 5: Solve for x
    x = 9,434,024.07/3,020.69
  6. Step 6: Final answer
    x = 3,123.13

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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.