Home / 1,153.73-1,731.10-605.78

Finding the Fourth Proportional to 1,153.73, 1,731.10 and 605.78

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Solution

The fourth proportional to 1,153.73, 1,731.10 and 605.78 is: 908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.73 : 1,731.10 = 605.78 : x
  2. Step 2: Convert to fraction form
    1,153.73/1,731.10 = 605.78/x
  3. Step 3: Cross multiply
    1,153.73x = 1,731.10 × 605.78
  4. Step 4: Simplify right side
    1,153.73x = 1,048,657.10
  5. Step 5: Solve for x
    x = 1,048,657.10/1,153.73
  6. Step 6: Final answer
    x = 908.93

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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.