Home / 3,155.66-4,735.58-1,207.79

Finding the Fourth Proportional to 3,155.66, 4,735.58 and 1,207.79

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Solution

The fourth proportional to 3,155.66, 4,735.58 and 1,207.79 is: 1,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.66 : 4,735.58 = 1,207.79 : x
  2. Step 2: Convert to fraction form
    3,155.66/4,735.58 = 1,207.79/x
  3. Step 3: Cross multiply
    3,155.66x = 4,735.58 × 1,207.79
  4. Step 4: Simplify right side
    3,155.66x = 5,719,556.45
  5. Step 5: Solve for x
    x = 5,719,556.45/3,155.66
  6. Step 6: Final answer
    x = 1,812.48

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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.