Home / 2,919.67-4,029.15-1,871.73

Finding the Fourth Proportional to 2,919.67, 4,029.15 and 1,871.73

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Solution

The fourth proportional to 2,919.67, 4,029.15 and 1,871.73 is: 2,582.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.67 : 4,029.15 = 1,871.73 : x
  2. Step 2: Convert to fraction form
    2,919.67/4,029.15 = 1,871.73/x
  3. Step 3: Cross multiply
    2,919.67x = 4,029.15 × 1,871.73
  4. Step 4: Simplify right side
    2,919.67x = 7,541,480.93
  5. Step 5: Solve for x
    x = 7,541,480.93/2,919.67
  6. Step 6: Final answer
    x = 2,582.99

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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.