Home / 3,900.24-5,381.40-2,328

Finding the Fourth Proportional to 3,900.24, 5,381.40 and 2,328

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Solution

The fourth proportional to 3,900.24, 5,381.40 and 2,328 is: 3,212.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.24 : 5,381.40 = 2,328 : x
  2. Step 2: Convert to fraction form
    3,900.24/5,381.40 = 2,328/x
  3. Step 3: Cross multiply
    3,900.24x = 5,381.40 × 2,328
  4. Step 4: Simplify right side
    3,900.24x = 12,527,899.20
  5. Step 5: Solve for x
    x = 12,527,899.20/3,900.24
  6. Step 6: Final answer
    x = 3,212.08

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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.