Home / 3,881.80-5,355.15-2,588.57

Finding the Fourth Proportional to 3,881.80, 5,355.15 and 2,588.57

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Solution

The fourth proportional to 3,881.80, 5,355.15 and 2,588.57 is: 3,571.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.80 : 5,355.15 = 2,588.57 : x
  2. Step 2: Convert to fraction form
    3,881.80/5,355.15 = 2,588.57/x
  3. Step 3: Cross multiply
    3,881.80x = 5,355.15 × 2,588.57
  4. Step 4: Simplify right side
    3,881.80x = 13,862,180.64
  5. Step 5: Solve for x
    x = 13,862,180.64/3,881.80
  6. Step 6: Final answer
    x = 3,571.07

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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.