Home / 3,860.82-5,328.69-2,601.90

Finding the Fourth Proportional to 3,860.82, 5,328.69 and 2,601.90

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Solution

The fourth proportional to 3,860.82, 5,328.69 and 2,601.90 is: 3,591.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.82 : 5,328.69 = 2,601.90 : x
  2. Step 2: Convert to fraction form
    3,860.82/5,328.69 = 2,601.90/x
  3. Step 3: Cross multiply
    3,860.82x = 5,328.69 × 2,601.90
  4. Step 4: Simplify right side
    3,860.82x = 13,864,718.51
  5. Step 5: Solve for x
    x = 13,864,718.51/3,860.82
  6. Step 6: Final answer
    x = 3,591.13

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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.