Home / 3,218.31-4,439.70-2,098.74

Finding the Fourth Proportional to 3,218.31, 4,439.70 and 2,098.74

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Solution

The fourth proportional to 3,218.31, 4,439.70 and 2,098.74 is: 2,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.31 : 4,439.70 = 2,098.74 : x
  2. Step 2: Convert to fraction form
    3,218.31/4,439.70 = 2,098.74/x
  3. Step 3: Cross multiply
    3,218.31x = 4,439.70 × 2,098.74
  4. Step 4: Simplify right side
    3,218.31x = 9,317,775.98
  5. Step 5: Solve for x
    x = 9,317,775.98/3,218.31
  6. Step 6: Final answer
    x = 2,895.24

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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.