Home / 3,218-4,441.08-1,976.24

Finding the Fourth Proportional to 3,218, 4,441.08 and 1,976.24

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Solution

The fourth proportional to 3,218, 4,441.08 and 1,976.24 is: 2,727.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218 : 4,441.08 = 1,976.24 : x
  2. Step 2: Convert to fraction form
    3,218/4,441.08 = 1,976.24/x
  3. Step 3: Cross multiply
    3,218x = 4,441.08 × 1,976.24
  4. Step 4: Simplify right side
    3,218x = 8,776,639.94
  5. Step 5: Solve for x
    x = 8,776,639.94/3,218
  6. Step 6: Final answer
    x = 2,727.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.