Home / 1,020.96-1,531.44-251.46

Finding the Fourth Proportional to 1,020.96, 1,531.44 and 251.46

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Solution

The fourth proportional to 1,020.96, 1,531.44 and 251.46 is: 377.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020.96 : 1,531.44 = 251.46 : x
  2. Step 2: Convert to fraction form
    1,020.96/1,531.44 = 251.46/x
  3. Step 3: Cross multiply
    1,020.96x = 1,531.44 × 251.46
  4. Step 4: Simplify right side
    1,020.96x = 385,095.90
  5. Step 5: Solve for x
    x = 385,095.90/1,020.96
  6. Step 6: Final answer
    x = 377.19

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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.