Home / 2,919.05-4,028.34-1,660.15

Finding the Fourth Proportional to 2,919.05, 4,028.34 and 1,660.15

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Solution

The fourth proportional to 2,919.05, 4,028.34 and 1,660.15 is: 2,291.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.05 : 4,028.34 = 1,660.15 : x
  2. Step 2: Convert to fraction form
    2,919.05/4,028.34 = 1,660.15/x
  3. Step 3: Cross multiply
    2,919.05x = 4,028.34 × 1,660.15
  4. Step 4: Simplify right side
    2,919.05x = 6,687,648.65
  5. Step 5: Solve for x
    x = 6,687,648.65/2,919.05
  6. Step 6: Final answer
    x = 2,291.04

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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.