Home / 3,308.70-4,565.52-2,131.36

Finding the Fourth Proportional to 3,308.70, 4,565.52 and 2,131.36

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Solution

The fourth proportional to 3,308.70, 4,565.52 and 2,131.36 is: 2,940.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.70 : 4,565.52 = 2,131.36 : x
  2. Step 2: Convert to fraction form
    3,308.70/4,565.52 = 2,131.36/x
  3. Step 3: Cross multiply
    3,308.70x = 4,565.52 × 2,131.36
  4. Step 4: Simplify right side
    3,308.70x = 9,730,766.71
  5. Step 5: Solve for x
    x = 9,730,766.71/3,308.70
  6. Step 6: Final answer
    x = 2,940.96

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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.