Home / 1,222.76-1,834.56-357.20

Finding the Fourth Proportional to 1,222.76, 1,834.56 and 357.20

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Solution

The fourth proportional to 1,222.76, 1,834.56 and 357.20 is: 535.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.76 : 1,834.56 = 357.20 : x
  2. Step 2: Convert to fraction form
    1,222.76/1,834.56 = 357.20/x
  3. Step 3: Cross multiply
    1,222.76x = 1,834.56 × 357.20
  4. Step 4: Simplify right side
    1,222.76x = 655,304.83
  5. Step 5: Solve for x
    x = 655,304.83/1,222.76
  6. Step 6: Final answer
    x = 535.92

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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.