Home / 1,180.20-1,761.07-1,172.10

Finding the Fourth Proportional to 1,180.20, 1,761.07 and 1,172.10

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Solution

The fourth proportional to 1,180.20, 1,761.07 and 1,172.10 is: 1,748.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.20 : 1,761.07 = 1,172.10 : x
  2. Step 2: Convert to fraction form
    1,180.20/1,761.07 = 1,172.10/x
  3. Step 3: Cross multiply
    1,180.20x = 1,761.07 × 1,172.10
  4. Step 4: Simplify right side
    1,180.20x = 2,064,147.22
  5. Step 5: Solve for x
    x = 2,064,147.22/1,180.20
  6. Step 6: Final answer
    x = 1,748.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.