Home / 5,105.25-7,045.19-2,867.08

Finding the Fourth Proportional to 5,105.25, 7,045.19 and 2,867.08

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Solution

The fourth proportional to 5,105.25, 7,045.19 and 2,867.08 is: 3,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.25 : 7,045.19 = 2,867.08 : x
  2. Step 2: Convert to fraction form
    5,105.25/7,045.19 = 2,867.08/x
  3. Step 3: Cross multiply
    5,105.25x = 7,045.19 × 2,867.08
  4. Step 4: Simplify right side
    5,105.25x = 20,199,088.12
  5. Step 5: Solve for x
    x = 20,199,088.12/5,105.25
  6. Step 6: Final answer
    x = 3,956.53

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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.