Home / 2,919.47-4,028.74-1,660.37

Finding the Fourth Proportional to 2,919.47, 4,028.74 and 1,660.37

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Solution

The fourth proportional to 2,919.47, 4,028.74 and 1,660.37 is: 2,291.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.47 : 4,028.74 = 1,660.37 : x
  2. Step 2: Convert to fraction form
    2,919.47/4,028.74 = 1,660.37/x
  3. Step 3: Cross multiply
    2,919.47x = 4,028.74 × 1,660.37
  4. Step 4: Simplify right side
    2,919.47x = 6,689,208.73
  5. Step 5: Solve for x
    x = 6,689,208.73/2,919.47
  6. Step 6: Final answer
    x = 2,291.24

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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.