Home / 1,531.26-2,305.22-1,372.50

Finding the Fourth Proportional to 1,531.26, 2,305.22 and 1,372.50

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Solution

The fourth proportional to 1,531.26, 2,305.22 and 1,372.50 is: 2,066.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.26 : 2,305.22 = 1,372.50 : x
  2. Step 2: Convert to fraction form
    1,531.26/2,305.22 = 1,372.50/x
  3. Step 3: Cross multiply
    1,531.26x = 2,305.22 × 1,372.50
  4. Step 4: Simplify right side
    1,531.26x = 3,163,907.59
  5. Step 5: Solve for x
    x = 3,163,907.59/1,531.26
  6. Step 6: Final answer
    x = 2,066.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.