Home / 3,592.39-5,390.20-1,645.15

Finding the Fourth Proportional to 3,592.39, 5,390.20 and 1,645.15

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Solution

The fourth proportional to 3,592.39, 5,390.20 and 1,645.15 is: 2,468.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,592.39 : 5,390.20 = 1,645.15 : x
  2. Step 2: Convert to fraction form
    3,592.39/5,390.20 = 1,645.15/x
  3. Step 3: Cross multiply
    3,592.39x = 5,390.20 × 1,645.15
  4. Step 4: Simplify right side
    3,592.39x = 8,867,660.58
  5. Step 5: Solve for x
    x = 8,867,660.58/3,592.39
  6. Step 6: Final answer
    x = 2,468.46

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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.