Home / 3,851.26-5,314.74-2,279.46

Finding the Fourth Proportional to 3,851.26, 5,314.74 and 2,279.46

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Solution

The fourth proportional to 3,851.26, 5,314.74 and 2,279.46 is: 3,145.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.26 : 5,314.74 = 2,279.46 : x
  2. Step 2: Convert to fraction form
    3,851.26/5,314.74 = 2,279.46/x
  3. Step 3: Cross multiply
    3,851.26x = 5,314.74 × 2,279.46
  4. Step 4: Simplify right side
    3,851.26x = 12,114,737.24
  5. Step 5: Solve for x
    x = 12,114,737.24/3,851.26
  6. Step 6: Final answer
    x = 3,145.66

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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.