Home / 3,211.78-4,818.14-1,731.77

Finding the Fourth Proportional to 3,211.78, 4,818.14 and 1,731.77

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Solution

The fourth proportional to 3,211.78, 4,818.14 and 1,731.77 is: 2,597.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.78 : 4,818.14 = 1,731.77 : x
  2. Step 2: Convert to fraction form
    3,211.78/4,818.14 = 1,731.77/x
  3. Step 3: Cross multiply
    3,211.78x = 4,818.14 × 1,731.77
  4. Step 4: Simplify right side
    3,211.78x = 8,343,910.31
  5. Step 5: Solve for x
    x = 8,343,910.31/3,211.78
  6. Step 6: Final answer
    x = 2,597.91

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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.