Home / 3,308.80-4,966.40-1,667.20

Finding the Fourth Proportional to 3,308.80, 4,966.40 and 1,667.20

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Solution

The fourth proportional to 3,308.80, 4,966.40 and 1,667.20 is: 2,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.80 : 4,966.40 = 1,667.20 : x
  2. Step 2: Convert to fraction form
    3,308.80/4,966.40 = 1,667.20/x
  3. Step 3: Cross multiply
    3,308.80x = 4,966.40 × 1,667.20
  4. Step 4: Simplify right side
    3,308.80x = 8,279,982.08
  5. Step 5: Solve for x
    x = 8,279,982.08/3,308.80
  6. Step 6: Final answer
    x = 2,502.41

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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.