Home / 5,534.80-8,302.20-3,420.70

Finding the Fourth Proportional to 5,534.80, 8,302.20 and 3,420.70

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Solution

The fourth proportional to 5,534.80, 8,302.20 and 3,420.70 is: 5,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,534.80 : 8,302.20 = 3,420.70 : x
  2. Step 2: Convert to fraction form
    5,534.80/8,302.20 = 3,420.70/x
  3. Step 3: Cross multiply
    5,534.80x = 8,302.20 × 3,420.70
  4. Step 4: Simplify right side
    5,534.80x = 28,399,335.54
  5. Step 5: Solve for x
    x = 28,399,335.54/5,534.80
  6. Step 6: Final answer
    x = 5,131.05

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1.5x scale

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.