Home / 5,527.80-7,623.98-3,909.86

Finding the Fourth Proportional to 5,527.80, 7,623.98 and 3,909.86

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Solution

The fourth proportional to 5,527.80, 7,623.98 and 3,909.86 is: 5,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,527.80 : 7,623.98 = 3,909.86 : x
  2. Step 2: Convert to fraction form
    5,527.80/7,623.98 = 3,909.86/x
  3. Step 3: Cross multiply
    5,527.80x = 7,623.98 × 3,909.86
  4. Step 4: Simplify right side
    5,527.80x = 29,808,694.44
  5. Step 5: Solve for x
    x = 29,808,694.44/5,527.80
  6. Step 6: Final answer
    x = 5,392.51

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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.