Home / 3,217.96-4,437.52-1,957.78

Finding the Fourth Proportional to 3,217.96, 4,437.52 and 1,957.78

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Solution

The fourth proportional to 3,217.96, 4,437.52 and 1,957.78 is: 2,699.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.96 : 4,437.52 = 1,957.78 : x
  2. Step 2: Convert to fraction form
    3,217.96/4,437.52 = 1,957.78/x
  3. Step 3: Cross multiply
    3,217.96x = 4,437.52 × 1,957.78
  4. Step 4: Simplify right side
    3,217.96x = 8,687,687.91
  5. Step 5: Solve for x
    x = 8,687,687.91/3,217.96
  6. Step 6: Final answer
    x = 2,699.75

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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.