Home / 3,118.23-4,301.91-2,869.56

Finding the Fourth Proportional to 3,118.23, 4,301.91 and 2,869.56

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Solution

The fourth proportional to 3,118.23, 4,301.91 and 2,869.56 is: 3,958.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.23 : 4,301.91 = 2,869.56 : x
  2. Step 2: Convert to fraction form
    3,118.23/4,301.91 = 2,869.56/x
  3. Step 3: Cross multiply
    3,118.23x = 4,301.91 × 2,869.56
  4. Step 4: Simplify right side
    3,118.23x = 12,344,588.86
  5. Step 5: Solve for x
    x = 12,344,588.86/3,118.23
  6. Step 6: Final answer
    x = 3,958.84

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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.