Home / 3,175.13-4,381.84-1,916.17

Finding the Fourth Proportional to 3,175.13, 4,381.84 and 1,916.17

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Solution

The fourth proportional to 3,175.13, 4,381.84 and 1,916.17 is: 2,644.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.13 : 4,381.84 = 1,916.17 : x
  2. Step 2: Convert to fraction form
    3,175.13/4,381.84 = 1,916.17/x
  3. Step 3: Cross multiply
    3,175.13x = 4,381.84 × 1,916.17
  4. Step 4: Simplify right side
    3,175.13x = 8,396,339.40
  5. Step 5: Solve for x
    x = 8,396,339.40/3,175.13
  6. Step 6: Final answer
    x = 2,644.41

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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.