Home / 3,218.06-4,437.89-2,099.86

Finding the Fourth Proportional to 3,218.06, 4,437.89 and 2,099.86

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Solution

The fourth proportional to 3,218.06, 4,437.89 and 2,099.86 is: 2,895.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.06 : 4,437.89 = 2,099.86 : x
  2. Step 2: Convert to fraction form
    3,218.06/4,437.89 = 2,099.86/x
  3. Step 3: Cross multiply
    3,218.06x = 4,437.89 × 2,099.86
  4. Step 4: Simplify right side
    3,218.06x = 9,318,933.98
  5. Step 5: Solve for x
    x = 9,318,933.98/3,218.06
  6. Step 6: Final answer
    x = 2,895.82

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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.