Home / 3,438.20-5,155.36-1,097.66

Finding the Fourth Proportional to 3,438.20, 5,155.36 and 1,097.66

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Solution

The fourth proportional to 3,438.20, 5,155.36 and 1,097.66 is: 1,645.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.20 : 5,155.36 = 1,097.66 : x
  2. Step 2: Convert to fraction form
    3,438.20/5,155.36 = 1,097.66/x
  3. Step 3: Cross multiply
    3,438.20x = 5,155.36 × 1,097.66
  4. Step 4: Simplify right side
    3,438.20x = 5,658,803.94
  5. Step 5: Solve for x
    x = 5,658,803.94/3,438.20
  6. Step 6: Final answer
    x = 1,645.86

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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.