Home / 5,387.24-8,069.70-2,616.20

Finding the Fourth Proportional to 5,387.24, 8,069.70 and 2,616.20

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Solution

The fourth proportional to 5,387.24, 8,069.70 and 2,616.20 is: 3,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.24 : 8,069.70 = 2,616.20 : x
  2. Step 2: Convert to fraction form
    5,387.24/8,069.70 = 2,616.20/x
  3. Step 3: Cross multiply
    5,387.24x = 8,069.70 × 2,616.20
  4. Step 4: Simplify right side
    5,387.24x = 21,111,949.14
  5. Step 5: Solve for x
    x = 21,111,949.14/5,387.24
  6. Step 6: Final answer
    x = 3,918.88

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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.