Home / 7,230.30-9,977.42-4,086.29

Finding the Fourth Proportional to 7,230.30, 9,977.42 and 4,086.29

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Solution

The fourth proportional to 7,230.30, 9,977.42 and 4,086.29 is: 5,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.30 : 9,977.42 = 4,086.29 : x
  2. Step 2: Convert to fraction form
    7,230.30/9,977.42 = 4,086.29/x
  3. Step 3: Cross multiply
    7,230.30x = 9,977.42 × 4,086.29
  4. Step 4: Simplify right side
    7,230.30x = 40,770,561.25
  5. Step 5: Solve for x
    x = 40,770,561.25/7,230.30
  6. Step 6: Final answer
    x = 5,638.85

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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.