Home / 3,571.20-5,357.16-1,230.90

Finding the Fourth Proportional to 3,571.20, 5,357.16 and 1,230.90

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Solution

The fourth proportional to 3,571.20, 5,357.16 and 1,230.90 is: 1,846.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.20 : 5,357.16 = 1,230.90 : x
  2. Step 2: Convert to fraction form
    3,571.20/5,357.16 = 1,230.90/x
  3. Step 3: Cross multiply
    3,571.20x = 5,357.16 × 1,230.90
  4. Step 4: Simplify right side
    3,571.20x = 6,594,108.15
  5. Step 5: Solve for x
    x = 6,594,108.15/3,571.20
  6. Step 6: Final answer
    x = 1,846.47

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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.