Home / 5,351.28-7,384.60-2,961.34

Finding the Fourth Proportional to 5,351.28, 7,384.60 and 2,961.34

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Solution

The fourth proportional to 5,351.28, 7,384.60 and 2,961.34 is: 4,086.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351.28 : 7,384.60 = 2,961.34 : x
  2. Step 2: Convert to fraction form
    5,351.28/7,384.60 = 2,961.34/x
  3. Step 3: Cross multiply
    5,351.28x = 7,384.60 × 2,961.34
  4. Step 4: Simplify right side
    5,351.28x = 21,868,311.36
  5. Step 5: Solve for x
    x = 21,868,311.36/5,351.28
  6. Step 6: Final answer
    x = 4,086.56

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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.