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Finding the Fourth Proportional to 1,095.79, 1,650.25 and 923.53

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Solution

The fourth proportional to 1,095.79, 1,650.25 and 923.53 is: 1,390.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.79 : 1,650.25 = 923.53 : x
  2. Step 2: Convert to fraction form
    1,095.79/1,650.25 = 923.53/x
  3. Step 3: Cross multiply
    1,095.79x = 1,650.25 × 923.53
  4. Step 4: Simplify right side
    1,095.79x = 1,524,055.38
  5. Step 5: Solve for x
    x = 1,524,055.38/1,095.79
  6. Step 6: Final answer
    x = 1,390.83

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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.