Home / 3,401.20-5,101.80-1,647.55

Finding the Fourth Proportional to 3,401.20, 5,101.80 and 1,647.55

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Solution

The fourth proportional to 3,401.20, 5,101.80 and 1,647.55 is: 2,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.20 : 5,101.80 = 1,647.55 : x
  2. Step 2: Convert to fraction form
    3,401.20/5,101.80 = 1,647.55/x
  3. Step 3: Cross multiply
    3,401.20x = 5,101.80 × 1,647.55
  4. Step 4: Simplify right side
    3,401.20x = 8,405,470.59
  5. Step 5: Solve for x
    x = 8,405,470.59/3,401.20
  6. Step 6: Final answer
    x = 2,471.33

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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.