Home / 3,129.78-4,694.67-1,441.01

Finding the Fourth Proportional to 3,129.78, 4,694.67 and 1,441.01

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Solution

The fourth proportional to 3,129.78, 4,694.67 and 1,441.01 is: 2,161.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.78 : 4,694.67 = 1,441.01 : x
  2. Step 2: Convert to fraction form
    3,129.78/4,694.67 = 1,441.01/x
  3. Step 3: Cross multiply
    3,129.78x = 4,694.67 × 1,441.01
  4. Step 4: Simplify right side
    3,129.78x = 6,765,066.42
  5. Step 5: Solve for x
    x = 6,765,066.42/3,129.78
  6. Step 6: Final answer
    x = 2,161.52

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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.