Home / 3,146.32-4,336.57-2,149.87

Finding the Fourth Proportional to 3,146.32, 4,336.57 and 2,149.87

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Solution

The fourth proportional to 3,146.32, 4,336.57 and 2,149.87 is: 2,963.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.32 : 4,336.57 = 2,149.87 : x
  2. Step 2: Convert to fraction form
    3,146.32/4,336.57 = 2,149.87/x
  3. Step 3: Cross multiply
    3,146.32x = 4,336.57 × 2,149.87
  4. Step 4: Simplify right side
    3,146.32x = 9,323,061.72
  5. Step 5: Solve for x
    x = 9,323,061.72/3,146.32
  6. Step 6: Final answer
    x = 2,963.16

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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.