Home / 4,122.79-6,185.10-1,200.85

Finding the Fourth Proportional to 4,122.79, 6,185.10 and 1,200.85

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Solution

The fourth proportional to 4,122.79, 6,185.10 and 1,200.85 is: 1,801.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.79 : 6,185.10 = 1,200.85 : x
  2. Step 2: Convert to fraction form
    4,122.79/6,185.10 = 1,200.85/x
  3. Step 3: Cross multiply
    4,122.79x = 6,185.10 × 1,200.85
  4. Step 4: Simplify right side
    4,122.79x = 7,427,377.34
  5. Step 5: Solve for x
    x = 7,427,377.34/4,122.79
  6. Step 6: Final answer
    x = 1,801.54

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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.