Home / 2,919.10-4,028.25-1,660.14

Finding the Fourth Proportional to 2,919.10, 4,028.25 and 1,660.14

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Solution

The fourth proportional to 2,919.10, 4,028.25 and 1,660.14 is: 2,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.10 : 4,028.25 = 1,660.14 : x
  2. Step 2: Convert to fraction form
    2,919.10/4,028.25 = 1,660.14/x
  3. Step 3: Cross multiply
    2,919.10x = 4,028.25 × 1,660.14
  4. Step 4: Simplify right side
    2,919.10x = 6,687,458.96
  5. Step 5: Solve for x
    x = 6,687,458.96/2,919.10
  6. Step 6: Final answer
    x = 2,290.93

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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.