Home / 3,150.68-4,728.36-1,178.12

Finding the Fourth Proportional to 3,150.68, 4,728.36 and 1,178.12

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Solution

The fourth proportional to 3,150.68, 4,728.36 and 1,178.12 is: 1,768.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.68 : 4,728.36 = 1,178.12 : x
  2. Step 2: Convert to fraction form
    3,150.68/4,728.36 = 1,178.12/x
  3. Step 3: Cross multiply
    3,150.68x = 4,728.36 × 1,178.12
  4. Step 4: Simplify right side
    3,150.68x = 5,570,575.48
  5. Step 5: Solve for x
    x = 5,570,575.48/3,150.68
  6. Step 6: Final answer
    x = 1,768.05

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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.