Home / 4,121.73-6,177.36-1,778.94

Finding the Fourth Proportional to 4,121.73, 6,177.36 and 1,778.94

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Solution

The fourth proportional to 4,121.73, 6,177.36 and 1,778.94 is: 2,666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.73 : 6,177.36 = 1,778.94 : x
  2. Step 2: Convert to fraction form
    4,121.73/6,177.36 = 1,778.94/x
  3. Step 3: Cross multiply
    4,121.73x = 6,177.36 × 1,778.94
  4. Step 4: Simplify right side
    4,121.73x = 10,989,152.80
  5. Step 5: Solve for x
    x = 10,989,152.80/4,121.73
  6. Step 6: Final answer
    x = 2,666.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.