Home / 3,715.03-5,128.38-2,372.39

Finding the Fourth Proportional to 3,715.03, 5,128.38 and 2,372.39

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Solution

The fourth proportional to 3,715.03, 5,128.38 and 2,372.39 is: 3,274.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.03 : 5,128.38 = 2,372.39 : x
  2. Step 2: Convert to fraction form
    3,715.03/5,128.38 = 2,372.39/x
  3. Step 3: Cross multiply
    3,715.03x = 5,128.38 × 2,372.39
  4. Step 4: Simplify right side
    3,715.03x = 12,166,545.56
  5. Step 5: Solve for x
    x = 12,166,545.56/3,715.03
  6. Step 6: Final answer
    x = 3,274.96

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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.