Home / 1,020.94-1,531.62-371.66

Finding the Fourth Proportional to 1,020.94, 1,531.62 and 371.66

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Solution

The fourth proportional to 1,020.94, 1,531.62 and 371.66 is: 557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020.94 : 1,531.62 = 371.66 : x
  2. Step 2: Convert to fraction form
    1,020.94/1,531.62 = 371.66/x
  3. Step 3: Cross multiply
    1,020.94x = 1,531.62 × 371.66
  4. Step 4: Simplify right side
    1,020.94x = 569,241.89
  5. Step 5: Solve for x
    x = 569,241.89/1,020.94
  6. Step 6: Final answer
    x = 557.57

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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.