Home / 5,276.78-7,276.73-3,388.07

Finding the Fourth Proportional to 5,276.78, 7,276.73 and 3,388.07

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Solution

The fourth proportional to 5,276.78, 7,276.73 and 3,388.07 is: 4,672.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.78 : 7,276.73 = 3,388.07 : x
  2. Step 2: Convert to fraction form
    5,276.78/7,276.73 = 3,388.07/x
  3. Step 3: Cross multiply
    5,276.78x = 7,276.73 × 3,388.07
  4. Step 4: Simplify right side
    5,276.78x = 24,654,017.29
  5. Step 5: Solve for x
    x = 24,654,017.29/5,276.78
  6. Step 6: Final answer
    x = 4,672.18

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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.