Home / 3,918.88-5,408.37-2,427.17

Finding the Fourth Proportional to 3,918.88, 5,408.37 and 2,427.17

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Solution

The fourth proportional to 3,918.88, 5,408.37 and 2,427.17 is: 3,349.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.88 : 5,408.37 = 2,427.17 : x
  2. Step 2: Convert to fraction form
    3,918.88/5,408.37 = 2,427.17/x
  3. Step 3: Cross multiply
    3,918.88x = 5,408.37 × 2,427.17
  4. Step 4: Simplify right side
    3,918.88x = 13,127,006.37
  5. Step 5: Solve for x
    x = 13,127,006.37/3,918.88
  6. Step 6: Final answer
    x = 3,349.68

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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.