Home / 1,021.32-1,531.91-363.06

Finding the Fourth Proportional to 1,021.32, 1,531.91 and 363.06

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Solution

The fourth proportional to 1,021.32, 1,531.91 and 363.06 is: 544.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021.32 : 1,531.91 = 363.06 : x
  2. Step 2: Convert to fraction form
    1,021.32/1,531.91 = 363.06/x
  3. Step 3: Cross multiply
    1,021.32x = 1,531.91 × 363.06
  4. Step 4: Simplify right side
    1,021.32x = 556,176.15
  5. Step 5: Solve for x
    x = 556,176.15/1,021.32
  6. Step 6: Final answer
    x = 544.57

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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.