Home / 2,179.81-3,265.98-1,438.96

Finding the Fourth Proportional to 2,179.81, 3,265.98 and 1,438.96

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Solution

The fourth proportional to 2,179.81, 3,265.98 and 1,438.96 is: 2,155.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.81 : 3,265.98 = 1,438.96 : x
  2. Step 2: Convert to fraction form
    2,179.81/3,265.98 = 1,438.96/x
  3. Step 3: Cross multiply
    2,179.81x = 3,265.98 × 1,438.96
  4. Step 4: Simplify right side
    2,179.81x = 4,699,614.58
  5. Step 5: Solve for x
    x = 4,699,614.58/2,179.81
  6. Step 6: Final answer
    x = 2,155.97

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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.