Home / 3,020.95-4,531.38-1,289.53

Finding the Fourth Proportional to 3,020.95, 4,531.38 and 1,289.53

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Solution

The fourth proportional to 3,020.95, 4,531.38 and 1,289.53 is: 1,934.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.95 : 4,531.38 = 1,289.53 : x
  2. Step 2: Convert to fraction form
    3,020.95/4,531.38 = 1,289.53/x
  3. Step 3: Cross multiply
    3,020.95x = 4,531.38 × 1,289.53
  4. Step 4: Simplify right side
    3,020.95x = 5,843,350.45
  5. Step 5: Solve for x
    x = 5,843,350.45/3,020.95
  6. Step 6: Final answer
    x = 1,934.28

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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.