Home / 1,113.05-1,669.01-650.97

Finding the Fourth Proportional to 1,113.05, 1,669.01 and 650.97

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Solution

The fourth proportional to 1,113.05, 1,669.01 and 650.97 is: 976.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.05 : 1,669.01 = 650.97 : x
  2. Step 2: Convert to fraction form
    1,113.05/1,669.01 = 650.97/x
  3. Step 3: Cross multiply
    1,113.05x = 1,669.01 × 650.97
  4. Step 4: Simplify right side
    1,113.05x = 1,086,472.18
  5. Step 5: Solve for x
    x = 1,086,472.18/1,113.05
  6. Step 6: Final answer
    x = 976.13

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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.