Home / 5,277.70-7,278.24-3,936.27

Finding the Fourth Proportional to 5,277.70, 7,278.24 and 3,936.27

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Solution

The fourth proportional to 5,277.70, 7,278.24 and 3,936.27 is: 5,428.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.70 : 7,278.24 = 3,936.27 : x
  2. Step 2: Convert to fraction form
    5,277.70/7,278.24 = 3,936.27/x
  3. Step 3: Cross multiply
    5,277.70x = 7,278.24 × 3,936.27
  4. Step 4: Simplify right side
    5,277.70x = 28,649,117.76
  5. Step 5: Solve for x
    x = 28,649,117.76/5,277.70
  6. Step 6: Final answer
    x = 5,428.34

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1.5x scale

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.