Home / 3,902.05-5,381.80-2,328.49

Finding the Fourth Proportional to 3,902.05, 5,381.80 and 2,328.49

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Solution

The fourth proportional to 3,902.05, 5,381.80 and 2,328.49 is: 3,211.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.05 : 5,381.80 = 2,328.49 : x
  2. Step 2: Convert to fraction form
    3,902.05/5,381.80 = 2,328.49/x
  3. Step 3: Cross multiply
    3,902.05x = 5,381.80 × 2,328.49
  4. Step 4: Simplify right side
    3,902.05x = 12,531,467.48
  5. Step 5: Solve for x
    x = 12,531,467.48/3,902.05
  6. Step 6: Final answer
    x = 3,211.51

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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.