Home / 5,135.20-7,694.55-4,643.12

Finding the Fourth Proportional to 5,135.20, 7,694.55 and 4,643.12

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Solution

The fourth proportional to 5,135.20, 7,694.55 and 4,643.12 is: 6,957.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.20 : 7,694.55 = 4,643.12 : x
  2. Step 2: Convert to fraction form
    5,135.20/7,694.55 = 4,643.12/x
  3. Step 3: Cross multiply
    5,135.20x = 7,694.55 × 4,643.12
  4. Step 4: Simplify right side
    5,135.20x = 35,726,738.23
  5. Step 5: Solve for x
    x = 35,726,738.23/5,135.20
  6. Step 6: Final answer
    x = 6,957.23

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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.