Home / 5,105.23-7,658.09-1,407.38

Finding the Fourth Proportional to 5,105.23, 7,658.09 and 1,407.38

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Solution

The fourth proportional to 5,105.23, 7,658.09 and 1,407.38 is: 2,111.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.23 : 7,658.09 = 1,407.38 : x
  2. Step 2: Convert to fraction form
    5,105.23/7,658.09 = 1,407.38/x
  3. Step 3: Cross multiply
    5,105.23x = 7,658.09 × 1,407.38
  4. Step 4: Simplify right side
    5,105.23x = 10,777,810.57
  5. Step 5: Solve for x
    x = 10,777,810.57/5,105.23
  6. Step 6: Final answer
    x = 2,111.13

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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.