Home / 5,449.62-7,519.41-3,210.78

Finding the Fourth Proportional to 5,449.62, 7,519.41 and 3,210.78

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Solution

The fourth proportional to 5,449.62, 7,519.41 and 3,210.78 is: 4,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.62 : 7,519.41 = 3,210.78 : x
  2. Step 2: Convert to fraction form
    5,449.62/7,519.41 = 3,210.78/x
  3. Step 3: Cross multiply
    5,449.62x = 7,519.41 × 3,210.78
  4. Step 4: Simplify right side
    5,449.62x = 24,143,171.24
  5. Step 5: Solve for x
    x = 24,143,171.24/5,449.62
  6. Step 6: Final answer
    x = 4,430.25

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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.