Home / 1,180.61-1,771.11-531.35

Finding the Fourth Proportional to 1,180.61, 1,771.11 and 531.35

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Solution

The fourth proportional to 1,180.61, 1,771.11 and 531.35 is: 797.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.61 : 1,771.11 = 531.35 : x
  2. Step 2: Convert to fraction form
    1,180.61/1,771.11 = 531.35/x
  3. Step 3: Cross multiply
    1,180.61x = 1,771.11 × 531.35
  4. Step 4: Simplify right side
    1,180.61x = 941,070.44
  5. Step 5: Solve for x
    x = 941,070.44/1,180.61
  6. Step 6: Final answer
    x = 797.11

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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.