Home / 2,919.24-4,028.55-1,660.29

Finding the Fourth Proportional to 2,919.24, 4,028.55 and 1,660.29

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Solution

The fourth proportional to 2,919.24, 4,028.55 and 1,660.29 is: 2,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.24 : 4,028.55 = 1,660.29 : x
  2. Step 2: Convert to fraction form
    2,919.24/4,028.55 = 1,660.29/x
  3. Step 3: Cross multiply
    2,919.24x = 4,028.55 × 1,660.29
  4. Step 4: Simplify right side
    2,919.24x = 6,688,561.28
  5. Step 5: Solve for x
    x = 6,688,561.28/2,919.24
  6. Step 6: Final answer
    x = 2,291.20

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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.