Home / 7,335.78-10,995.36-3,640.56

Finding the Fourth Proportional to 7,335.78, 10,995.36 and 3,640.56

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Solution

The fourth proportional to 7,335.78, 10,995.36 and 3,640.56 is: 5,456.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,335.78 : 10,995.36 = 3,640.56 : x
  2. Step 2: Convert to fraction form
    7,335.78/10,995.36 = 3,640.56/x
  3. Step 3: Cross multiply
    7,335.78x = 10,995.36 × 3,640.56
  4. Step 4: Simplify right side
    7,335.78x = 40,029,267.80
  5. Step 5: Solve for x
    x = 40,029,267.80/7,335.78
  6. Step 6: Final answer
    x = 5,456.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.