Home / 2,990.97-4,486.19-1,531.08

Finding the Fourth Proportional to 2,990.97, 4,486.19 and 1,531.08

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Solution

The fourth proportional to 2,990.97, 4,486.19 and 1,531.08 is: 2,296.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.97 : 4,486.19 = 1,531.08 : x
  2. Step 2: Convert to fraction form
    2,990.97/4,486.19 = 1,531.08/x
  3. Step 3: Cross multiply
    2,990.97x = 4,486.19 × 1,531.08
  4. Step 4: Simplify right side
    2,990.97x = 6,868,708.13
  5. Step 5: Solve for x
    x = 6,868,708.13/2,990.97
  6. Step 6: Final answer
    x = 2,296.48

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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.