Home / 3,755.64-5,180.10-2,869.91

Finding the Fourth Proportional to 3,755.64, 5,180.10 and 2,869.91

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Solution

The fourth proportional to 3,755.64, 5,180.10 and 2,869.91 is: 3,958.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.64 : 5,180.10 = 2,869.91 : x
  2. Step 2: Convert to fraction form
    3,755.64/5,180.10 = 2,869.91/x
  3. Step 3: Cross multiply
    3,755.64x = 5,180.10 × 2,869.91
  4. Step 4: Simplify right side
    3,755.64x = 14,866,420.79
  5. Step 5: Solve for x
    x = 14,866,420.79/3,755.64
  6. Step 6: Final answer
    x = 3,958.43

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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.