Home / 3,914.90-5,402.55-2,146.50

Finding the Fourth Proportional to 3,914.90, 5,402.55 and 2,146.50

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Solution

The fourth proportional to 3,914.90, 5,402.55 and 2,146.50 is: 2,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.90 : 5,402.55 = 2,146.50 : x
  2. Step 2: Convert to fraction form
    3,914.90/5,402.55 = 2,146.50/x
  3. Step 3: Cross multiply
    3,914.90x = 5,402.55 × 2,146.50
  4. Step 4: Simplify right side
    3,914.90x = 11,596,573.58
  5. Step 5: Solve for x
    x = 11,596,573.58/3,914.90
  6. Step 6: Final answer
    x = 2,962.16

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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.