Home / 5,105.48-7,045.53-2,867.39

Finding the Fourth Proportional to 5,105.48, 7,045.53 and 2,867.39

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Solution

The fourth proportional to 5,105.48, 7,045.53 and 2,867.39 is: 3,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.48 : 7,045.53 = 2,867.39 : x
  2. Step 2: Convert to fraction form
    5,105.48/7,045.53 = 2,867.39/x
  3. Step 3: Cross multiply
    5,105.48x = 7,045.53 × 2,867.39
  4. Step 4: Simplify right side
    5,105.48x = 20,202,247.04
  5. Step 5: Solve for x
    x = 20,202,247.04/5,105.48
  6. Step 6: Final answer
    x = 3,956.98

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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.