Home / 7,067.40-9,753.28-3,880.96

Finding the Fourth Proportional to 7,067.40, 9,753.28 and 3,880.96

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Solution

The fourth proportional to 7,067.40, 9,753.28 and 3,880.96 is: 5,355.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.40 : 9,753.28 = 3,880.96 : x
  2. Step 2: Convert to fraction form
    7,067.40/9,753.28 = 3,880.96/x
  3. Step 3: Cross multiply
    7,067.40x = 9,753.28 × 3,880.96
  4. Step 4: Simplify right side
    7,067.40x = 37,852,055.46
  5. Step 5: Solve for x
    x = 37,852,055.46/7,067.40
  6. Step 6: Final answer
    x = 5,355.87

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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.