Home / 5,479.68-8,218.64-2,705.60

Finding the Fourth Proportional to 5,479.68, 8,218.64 and 2,705.60

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Solution

The fourth proportional to 5,479.68, 8,218.64 and 2,705.60 is: 4,057.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.68 : 8,218.64 = 2,705.60 : x
  2. Step 2: Convert to fraction form
    5,479.68/8,218.64 = 2,705.60/x
  3. Step 3: Cross multiply
    5,479.68x = 8,218.64 × 2,705.60
  4. Step 4: Simplify right side
    5,479.68x = 22,236,352.38
  5. Step 5: Solve for x
    x = 22,236,352.38/5,479.68
  6. Step 6: Final answer
    x = 4,057.97

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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.