Home / 3,261.76-4,881.60-2,742.40

Finding the Fourth Proportional to 3,261.76, 4,881.60 and 2,742.40

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Solution

The fourth proportional to 3,261.76, 4,881.60 and 2,742.40 is: 4,104.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.76 : 4,881.60 = 2,742.40 : x
  2. Step 2: Convert to fraction form
    3,261.76/4,881.60 = 2,742.40/x
  3. Step 3: Cross multiply
    3,261.76x = 4,881.60 × 2,742.40
  4. Step 4: Simplify right side
    3,261.76x = 13,387,299.84
  5. Step 5: Solve for x
    x = 13,387,299.84/3,261.76
  6. Step 6: Final answer
    x = 4,104.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.