Home / 5,635.44-7,778.16-3,542.40

Finding the Fourth Proportional to 5,635.44, 7,778.16 and 3,542.40

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Solution

The fourth proportional to 5,635.44, 7,778.16 and 3,542.40 is: 4,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,635.44 : 7,778.16 = 3,542.40 : x
  2. Step 2: Convert to fraction form
    5,635.44/7,778.16 = 3,542.40/x
  3. Step 3: Cross multiply
    5,635.44x = 7,778.16 × 3,542.40
  4. Step 4: Simplify right side
    5,635.44x = 27,553,353.98
  5. Step 5: Solve for x
    x = 27,553,353.98/5,635.44
  6. Step 6: Final answer
    x = 4,889.30

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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.