Home / 3,914.87-5,402.48-2,146.47

Finding the Fourth Proportional to 3,914.87, 5,402.48 and 2,146.47

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Solution

The fourth proportional to 3,914.87, 5,402.48 and 2,146.47 is: 2,962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.87 : 5,402.48 = 2,146.47 : x
  2. Step 2: Convert to fraction form
    3,914.87/5,402.48 = 2,146.47/x
  3. Step 3: Cross multiply
    3,914.87x = 5,402.48 × 2,146.47
  4. Step 4: Simplify right side
    3,914.87x = 11,596,266.61
  5. Step 5: Solve for x
    x = 11,596,266.61/3,914.87
  6. Step 6: Final answer
    x = 2,962.11

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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.