Home / 5,635.45-7,778.60-3,645.96

Finding the Fourth Proportional to 5,635.45, 7,778.60 and 3,645.96

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Solution

The fourth proportional to 5,635.45, 7,778.60 and 3,645.96 is: 5,032.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,635.45 : 7,778.60 = 3,645.96 : x
  2. Step 2: Convert to fraction form
    5,635.45/7,778.60 = 3,645.96/x
  3. Step 3: Cross multiply
    5,635.45x = 7,778.60 × 3,645.96
  4. Step 4: Simplify right side
    5,635.45x = 28,360,464.46
  5. Step 5: Solve for x
    x = 28,360,464.46/5,635.45
  6. Step 6: Final answer
    x = 5,032.51

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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.