Home / 3,176.26-4,381.85-1,916.60

Finding the Fourth Proportional to 3,176.26, 4,381.85 and 1,916.60

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Solution

The fourth proportional to 3,176.26, 4,381.85 and 1,916.60 is: 2,644.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.26 : 4,381.85 = 1,916.60 : x
  2. Step 2: Convert to fraction form
    3,176.26/4,381.85 = 1,916.60/x
  3. Step 3: Cross multiply
    3,176.26x = 4,381.85 × 1,916.60
  4. Step 4: Simplify right side
    3,176.26x = 8,398,253.71
  5. Step 5: Solve for x
    x = 8,398,253.71/3,176.26
  6. Step 6: Final answer
    x = 2,644.07

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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.