Home / 5,229.58-7,216.85-2,839.56

Finding the Fourth Proportional to 5,229.58, 7,216.85 and 2,839.56

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Solution

The fourth proportional to 5,229.58, 7,216.85 and 2,839.56 is: 3,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.58 : 7,216.85 = 2,839.56 : x
  2. Step 2: Convert to fraction form
    5,229.58/7,216.85 = 2,839.56/x
  3. Step 3: Cross multiply
    5,229.58x = 7,216.85 × 2,839.56
  4. Step 4: Simplify right side
    5,229.58x = 20,492,642.65
  5. Step 5: Solve for x
    x = 20,492,642.65/5,229.58
  6. Step 6: Final answer
    x = 3,918.60

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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.