Home / 3,855.40-5,319.03-2,529.84

Finding the Fourth Proportional to 3,855.40, 5,319.03 and 2,529.84

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Solution

The fourth proportional to 3,855.40, 5,319.03 and 2,529.84 is: 3,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.40 : 5,319.03 = 2,529.84 : x
  2. Step 2: Convert to fraction form
    3,855.40/5,319.03 = 2,529.84/x
  3. Step 3: Cross multiply
    3,855.40x = 5,319.03 × 2,529.84
  4. Step 4: Simplify right side
    3,855.40x = 13,456,294.86
  5. Step 5: Solve for x
    x = 13,456,294.86/3,855.40
  6. Step 6: Final answer
    x = 3,490.25

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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.