Home / 5,340.30-7,369.50-2,982.40

Finding the Fourth Proportional to 5,340.30, 7,369.50 and 2,982.40

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Solution

The fourth proportional to 5,340.30, 7,369.50 and 2,982.40 is: 4,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.30 : 7,369.50 = 2,982.40 : x
  2. Step 2: Convert to fraction form
    5,340.30/7,369.50 = 2,982.40/x
  3. Step 3: Cross multiply
    5,340.30x = 7,369.50 × 2,982.40
  4. Step 4: Simplify right side
    5,340.30x = 21,978,796.80
  5. Step 5: Solve for x
    x = 21,978,796.80/5,340.30
  6. Step 6: Final answer
    x = 4,115.65

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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.