Home / 5,362.80-8,040.45-3,170.40

Finding the Fourth Proportional to 5,362.80, 8,040.45 and 3,170.40

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Solution

The fourth proportional to 5,362.80, 8,040.45 and 3,170.40 is: 4,753.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362.80 : 8,040.45 = 3,170.40 : x
  2. Step 2: Convert to fraction form
    5,362.80/8,040.45 = 3,170.40/x
  3. Step 3: Cross multiply
    5,362.80x = 8,040.45 × 3,170.40
  4. Step 4: Simplify right side
    5,362.80x = 25,491,442.68
  5. Step 5: Solve for x
    x = 25,491,442.68/5,362.80
  6. Step 6: Final answer
    x = 4,753.38

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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.