Home / 4,125.95-6,189.70-1,352.78

Finding the Fourth Proportional to 4,125.95, 6,189.70 and 1,352.78

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Solution

The fourth proportional to 4,125.95, 6,189.70 and 1,352.78 is: 2,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,125.95 : 6,189.70 = 1,352.78 : x
  2. Step 2: Convert to fraction form
    4,125.95/6,189.70 = 1,352.78/x
  3. Step 3: Cross multiply
    4,125.95x = 6,189.70 × 1,352.78
  4. Step 4: Simplify right side
    4,125.95x = 8,373,328.60
  5. Step 5: Solve for x
    x = 8,373,328.60/4,125.95
  6. Step 6: Final answer
    x = 2,029.43

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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.