Home / 2,919.61-4,029.83-1,871.11

Finding the Fourth Proportional to 2,919.61, 4,029.83 and 1,871.11

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Solution

The fourth proportional to 2,919.61, 4,029.83 and 1,871.11 is: 2,582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.61 : 4,029.83 = 1,871.11 : x
  2. Step 2: Convert to fraction form
    2,919.61/4,029.83 = 1,871.11/x
  3. Step 3: Cross multiply
    2,919.61x = 4,029.83 × 1,871.11
  4. Step 4: Simplify right side
    2,919.61x = 7,540,255.21
  5. Step 5: Solve for x
    x = 7,540,255.21/2,919.61
  6. Step 6: Final answer
    x = 2,582.62

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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.