Home / 3,175.94-4,381.53-1,916.66

Finding the Fourth Proportional to 3,175.94, 4,381.53 and 1,916.66

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Solution

The fourth proportional to 3,175.94, 4,381.53 and 1,916.66 is: 2,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.94 : 4,381.53 = 1,916.66 : x
  2. Step 2: Convert to fraction form
    3,175.94/4,381.53 = 1,916.66/x
  3. Step 3: Cross multiply
    3,175.94x = 4,381.53 × 1,916.66
  4. Step 4: Simplify right side
    3,175.94x = 8,397,903.29
  5. Step 5: Solve for x
    x = 8,397,903.29/3,175.94
  6. Step 6: Final answer
    x = 2,644.23

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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.