Home / 3,211.68-4,432.32-1,814.88

Finding the Fourth Proportional to 3,211.68, 4,432.32 and 1,814.88

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Solution

The fourth proportional to 3,211.68, 4,432.32 and 1,814.88 is: 2,504.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.68 : 4,432.32 = 1,814.88 : x
  2. Step 2: Convert to fraction form
    3,211.68/4,432.32 = 1,814.88/x
  3. Step 3: Cross multiply
    3,211.68x = 4,432.32 × 1,814.88
  4. Step 4: Simplify right side
    3,211.68x = 8,044,128.92
  5. Step 5: Solve for x
    x = 8,044,128.92/3,211.68
  6. Step 6: Final answer
    x = 2,504.65

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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.