Home / 3,174.66-4,381.32-1,916.34

Finding the Fourth Proportional to 3,174.66, 4,381.32 and 1,916.34

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Solution

The fourth proportional to 3,174.66, 4,381.32 and 1,916.34 is: 2,644.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.66 : 4,381.32 = 1,916.34 : x
  2. Step 2: Convert to fraction form
    3,174.66/4,381.32 = 1,916.34/x
  3. Step 3: Cross multiply
    3,174.66x = 4,381.32 × 1,916.34
  4. Step 4: Simplify right side
    3,174.66x = 8,396,098.77
  5. Step 5: Solve for x
    x = 8,396,098.77/3,174.66
  6. Step 6: Final answer
    x = 2,644.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.