Home / 5,478.05-8,216.97-3,718.68

Finding the Fourth Proportional to 5,478.05, 8,216.97 and 3,718.68

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Solution

The fourth proportional to 5,478.05, 8,216.97 and 3,718.68 is: 5,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,478.05 : 8,216.97 = 3,718.68 : x
  2. Step 2: Convert to fraction form
    5,478.05/8,216.97 = 3,718.68/x
  3. Step 3: Cross multiply
    5,478.05x = 8,216.97 × 3,718.68
  4. Step 4: Simplify right side
    5,478.05x = 30,556,282.00
  5. Step 5: Solve for x
    x = 30,556,282.00/5,478.05
  6. Step 6: Final answer
    x = 5,577.95

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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.