Home / 1,531.98-2,112.48-1,310.04

Finding the Fourth Proportional to 1,531.98, 2,112.48 and 1,310.04

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Solution

The fourth proportional to 1,531.98, 2,112.48 and 1,310.04 is: 1,806.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.98 : 2,112.48 = 1,310.04 : x
  2. Step 2: Convert to fraction form
    1,531.98/2,112.48 = 1,310.04/x
  3. Step 3: Cross multiply
    1,531.98x = 2,112.48 × 1,310.04
  4. Step 4: Simplify right side
    1,531.98x = 2,767,433.30
  5. Step 5: Solve for x
    x = 2,767,433.30/1,531.98
  6. Step 6: Final answer
    x = 1,806.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.