Home / 3,022.40-4,531.84-1,290.08

Finding the Fourth Proportional to 3,022.40, 4,531.84 and 1,290.08

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Solution

The fourth proportional to 3,022.40, 4,531.84 and 1,290.08 is: 1,934.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,022.40 : 4,531.84 = 1,290.08 : x
  2. Step 2: Convert to fraction form
    3,022.40/4,531.84 = 1,290.08/x
  3. Step 3: Cross multiply
    3,022.40x = 4,531.84 × 1,290.08
  4. Step 4: Simplify right side
    3,022.40x = 5,846,436.15
  5. Step 5: Solve for x
    x = 5,846,436.15/3,022.40
  6. Step 6: Final answer
    x = 1,934.37

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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.