Home / 5,517.54-7,614.90-3,421.98

Finding the Fourth Proportional to 5,517.54, 7,614.90 and 3,421.98

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Solution

The fourth proportional to 5,517.54, 7,614.90 and 3,421.98 is: 4,722.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.54 : 7,614.90 = 3,421.98 : x
  2. Step 2: Convert to fraction form
    5,517.54/7,614.90 = 3,421.98/x
  3. Step 3: Cross multiply
    5,517.54x = 7,614.90 × 3,421.98
  4. Step 4: Simplify right side
    5,517.54x = 26,058,035.50
  5. Step 5: Solve for x
    x = 26,058,035.50/5,517.54
  6. Step 6: Final answer
    x = 4,722.76

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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.