Home / 5,086.92-7,629.78-1,339.08

Finding the Fourth Proportional to 5,086.92, 7,629.78 and 1,339.08

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Solution

The fourth proportional to 5,086.92, 7,629.78 and 1,339.08 is: 2,008.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,086.92 : 7,629.78 = 1,339.08 : x
  2. Step 2: Convert to fraction form
    5,086.92/7,629.78 = 1,339.08/x
  3. Step 3: Cross multiply
    5,086.92x = 7,629.78 × 1,339.08
  4. Step 4: Simplify right side
    5,086.92x = 10,216,885.80
  5. Step 5: Solve for x
    x = 10,216,885.80/5,086.92
  6. Step 6: Final answer
    x = 2,008.46

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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.