Home / 2,919.23-4,028.18-1,660.28

Finding the Fourth Proportional to 2,919.23, 4,028.18 and 1,660.28

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Solution

The fourth proportional to 2,919.23, 4,028.18 and 1,660.28 is: 2,290.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.23 : 4,028.18 = 1,660.28 : x
  2. Step 2: Convert to fraction form
    2,919.23/4,028.18 = 1,660.28/x
  3. Step 3: Cross multiply
    2,919.23x = 4,028.18 × 1,660.28
  4. Step 4: Simplify right side
    2,919.23x = 6,687,878.25
  5. Step 5: Solve for x
    x = 6,687,878.25/2,919.23
  6. Step 6: Final answer
    x = 2,290.98

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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.