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Finding the Fourth Proportional to 1,184.83, 1,776.33 and 722.72

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Solution

The fourth proportional to 1,184.83, 1,776.33 and 722.72 is: 1,083.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.83 : 1,776.33 = 722.72 : x
  2. Step 2: Convert to fraction form
    1,184.83/1,776.33 = 722.72/x
  3. Step 3: Cross multiply
    1,184.83x = 1,776.33 × 722.72
  4. Step 4: Simplify right side
    1,184.83x = 1,283,793.66
  5. Step 5: Solve for x
    x = 1,283,793.66/1,184.83
  6. Step 6: Final answer
    x = 1,083.53

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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.