Home / 3,020.86-4,531.23-1,480.78

Finding the Fourth Proportional to 3,020.86, 4,531.23 and 1,480.78

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Solution

The fourth proportional to 3,020.86, 4,531.23 and 1,480.78 is: 2,221.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.86 : 4,531.23 = 1,480.78 : x
  2. Step 2: Convert to fraction form
    3,020.86/4,531.23 = 1,480.78/x
  3. Step 3: Cross multiply
    3,020.86x = 4,531.23 × 1,480.78
  4. Step 4: Simplify right side
    3,020.86x = 6,709,754.76
  5. Step 5: Solve for x
    x = 6,709,754.76/3,020.86
  6. Step 6: Final answer
    x = 2,221.14

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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.