Home / 3,930.19-5,421.35-2,532.94

Finding the Fourth Proportional to 3,930.19, 5,421.35 and 2,532.94

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Solution

The fourth proportional to 3,930.19, 5,421.35 and 2,532.94 is: 3,493.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.19 : 5,421.35 = 2,532.94 : x
  2. Step 2: Convert to fraction form
    3,930.19/5,421.35 = 2,532.94/x
  3. Step 3: Cross multiply
    3,930.19x = 5,421.35 × 2,532.94
  4. Step 4: Simplify right side
    3,930.19x = 13,731,947.05
  5. Step 5: Solve for x
    x = 13,731,947.05/3,930.19
  6. Step 6: Final answer
    x = 3,493.97

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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.