Home / 5,565.10-7,680.21-3,207.40

Finding the Fourth Proportional to 5,565.10, 7,680.21 and 3,207.40

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Solution

The fourth proportional to 5,565.10, 7,680.21 and 3,207.40 is: 4,426.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,565.10 : 7,680.21 = 3,207.40 : x
  2. Step 2: Convert to fraction form
    5,565.10/7,680.21 = 3,207.40/x
  3. Step 3: Cross multiply
    5,565.10x = 7,680.21 × 3,207.40
  4. Step 4: Simplify right side
    5,565.10x = 24,633,505.55
  5. Step 5: Solve for x
    x = 24,633,505.55/5,565.10
  6. Step 6: Final answer
    x = 4,426.43

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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.