Home / 2,175.86-3,256.50-2,146.70

Finding the Fourth Proportional to 2,175.86, 3,256.50 and 2,146.70

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Solution

The fourth proportional to 2,175.86, 3,256.50 and 2,146.70 is: 3,212.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.86 : 3,256.50 = 2,146.70 : x
  2. Step 2: Convert to fraction form
    2,175.86/3,256.50 = 2,146.70/x
  3. Step 3: Cross multiply
    2,175.86x = 3,256.50 × 2,146.70
  4. Step 4: Simplify right side
    2,175.86x = 6,990,744.74
  5. Step 5: Solve for x
    x = 6,990,744.74/2,175.86
  6. Step 6: Final answer
    x = 3,212.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.