Home / 3,887.79-5,365.91-2,708.17

Finding the Fourth Proportional to 3,887.79, 5,365.91 and 2,708.17

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Solution

The fourth proportional to 3,887.79, 5,365.91 and 2,708.17 is: 3,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.79 : 5,365.91 = 2,708.17 : x
  2. Step 2: Convert to fraction form
    3,887.79/5,365.91 = 2,708.17/x
  3. Step 3: Cross multiply
    3,887.79x = 5,365.91 × 2,708.17
  4. Step 4: Simplify right side
    3,887.79x = 14,531,796.48
  5. Step 5: Solve for x
    x = 14,531,796.48/3,887.79
  6. Step 6: Final answer
    x = 3,737.80

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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.