Home / 3,180.19-4,771.41-1,425.05

Finding the Fourth Proportional to 3,180.19, 4,771.41 and 1,425.05

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Solution

The fourth proportional to 3,180.19, 4,771.41 and 1,425.05 is: 2,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.19 : 4,771.41 = 1,425.05 : x
  2. Step 2: Convert to fraction form
    3,180.19/4,771.41 = 1,425.05/x
  3. Step 3: Cross multiply
    3,180.19x = 4,771.41 × 1,425.05
  4. Step 4: Simplify right side
    3,180.19x = 6,799,490.70
  5. Step 5: Solve for x
    x = 6,799,490.70/3,180.19
  6. Step 6: Final answer
    x = 2,138.08

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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.