Home / 2,919.17-4,028.46-1,871.24

Finding the Fourth Proportional to 2,919.17, 4,028.46 and 1,871.24

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Solution

The fourth proportional to 2,919.17, 4,028.46 and 1,871.24 is: 2,582.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.17 : 4,028.46 = 1,871.24 : x
  2. Step 2: Convert to fraction form
    2,919.17/4,028.46 = 1,871.24/x
  3. Step 3: Cross multiply
    2,919.17x = 4,028.46 × 1,871.24
  4. Step 4: Simplify right side
    2,919.17x = 7,538,195.35
  5. Step 5: Solve for x
    x = 7,538,195.35/2,919.17
  6. Step 6: Final answer
    x = 2,582.31

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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.