Home / 5,351.79-7,385.35-2,961.76

Finding the Fourth Proportional to 5,351.79, 7,385.35 and 2,961.76

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Solution

The fourth proportional to 5,351.79, 7,385.35 and 2,961.76 is: 4,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.79 : 7,385.35 = 2,961.76 : x
  2. Step 2: Convert to fraction form
    5,351.79/7,385.35 = 2,961.76/x
  3. Step 3: Cross multiply
    5,351.79x = 7,385.35 × 2,961.76
  4. Step 4: Simplify right side
    5,351.79x = 21,873,597.29
  5. Step 5: Solve for x
    x = 21,873,597.29/5,351.79
  6. Step 6: Final answer
    x = 4,087.16

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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.