Home / 1,531.80-2,114.36-1,453.43

Finding the Fourth Proportional to 1,531.80, 2,114.36 and 1,453.43

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Solution

The fourth proportional to 1,531.80, 2,114.36 and 1,453.43 is: 2,006.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.80 : 2,114.36 = 1,453.43 : x
  2. Step 2: Convert to fraction form
    1,531.80/2,114.36 = 1,453.43/x
  3. Step 3: Cross multiply
    1,531.80x = 2,114.36 × 1,453.43
  4. Step 4: Simplify right side
    1,531.80x = 3,073,056.42
  5. Step 5: Solve for x
    x = 3,073,056.42/1,531.80
  6. Step 6: Final answer
    x = 2,006.17

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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.