Home / 2,989.41-4,122.76-2,092.69

Finding the Fourth Proportional to 2,989.41, 4,122.76 and 2,092.69

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Solution

The fourth proportional to 2,989.41, 4,122.76 and 2,092.69 is: 2,886.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.41 : 4,122.76 = 2,092.69 : x
  2. Step 2: Convert to fraction form
    2,989.41/4,122.76 = 2,092.69/x
  3. Step 3: Cross multiply
    2,989.41x = 4,122.76 × 2,092.69
  4. Step 4: Simplify right side
    2,989.41x = 8,627,658.62
  5. Step 5: Solve for x
    x = 8,627,658.62/2,989.41
  6. Step 6: Final answer
    x = 2,886.07

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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.