Home / 1,222.95-1,841.29-1,077.61

Finding the Fourth Proportional to 1,222.95, 1,841.29 and 1,077.61

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Solution

The fourth proportional to 1,222.95, 1,841.29 and 1,077.61 is: 1,622.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.95 : 1,841.29 = 1,077.61 : x
  2. Step 2: Convert to fraction form
    1,222.95/1,841.29 = 1,077.61/x
  3. Step 3: Cross multiply
    1,222.95x = 1,841.29 × 1,077.61
  4. Step 4: Simplify right side
    1,222.95x = 1,984,197.54
  5. Step 5: Solve for x
    x = 1,984,197.54/1,222.95
  6. Step 6: Final answer
    x = 1,622.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.