Home / 2,003.10-2,761.62-1,531.28

Finding the Fourth Proportional to 2,003.10, 2,761.62 and 1,531.28

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Solution

The fourth proportional to 2,003.10, 2,761.62 and 1,531.28 is: 2,111.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,003.10 : 2,761.62 = 1,531.28 : x
  2. Step 2: Convert to fraction form
    2,003.10/2,761.62 = 1,531.28/x
  3. Step 3: Cross multiply
    2,003.10x = 2,761.62 × 1,531.28
  4. Step 4: Simplify right side
    2,003.10x = 4,228,813.47
  5. Step 5: Solve for x
    x = 4,228,813.47/2,003.10
  6. Step 6: Final answer
    x = 2,111.13

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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.