Home / 3,109.38-4,656.78-2,008.59

Finding the Fourth Proportional to 3,109.38, 4,656.78 and 2,008.59

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Solution

The fourth proportional to 3,109.38, 4,656.78 and 2,008.59 is: 3,008.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.38 : 4,656.78 = 2,008.59 : x
  2. Step 2: Convert to fraction form
    3,109.38/4,656.78 = 2,008.59/x
  3. Step 3: Cross multiply
    3,109.38x = 4,656.78 × 2,008.59
  4. Step 4: Simplify right side
    3,109.38x = 9,353,561.74
  5. Step 5: Solve for x
    x = 9,353,561.74/3,109.38
  6. Step 6: Final answer
    x = 3,008.18

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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.