Home / 3,108.09-4,663.13-916.83

Finding the Fourth Proportional to 3,108.09, 4,663.13 and 916.83

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Solution

The fourth proportional to 3,108.09, 4,663.13 and 916.83 is: 1,375.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.09 : 4,663.13 = 916.83 : x
  2. Step 2: Convert to fraction form
    3,108.09/4,663.13 = 916.83/x
  3. Step 3: Cross multiply
    3,108.09x = 4,663.13 × 916.83
  4. Step 4: Simplify right side
    3,108.09x = 4,275,292.89
  5. Step 5: Solve for x
    x = 4,275,292.89/3,108.09
  6. Step 6: Final answer
    x = 1,375.54

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1.5x scale

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.