Home / 4,125.78-6,180.03-1,818.90

Finding the Fourth Proportional to 4,125.78, 6,180.03 and 1,818.90

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Solution

The fourth proportional to 4,125.78, 6,180.03 and 1,818.90 is: 2,724.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,125.78 : 6,180.03 = 1,818.90 : x
  2. Step 2: Convert to fraction form
    4,125.78/6,180.03 = 1,818.90/x
  3. Step 3: Cross multiply
    4,125.78x = 6,180.03 × 1,818.90
  4. Step 4: Simplify right side
    4,125.78x = 11,240,856.57
  5. Step 5: Solve for x
    x = 11,240,856.57/4,125.78
  6. Step 6: Final answer
    x = 2,724.54

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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.