Home / 4,976.96-6,866.78-3,209.58

Finding the Fourth Proportional to 4,976.96, 6,866.78 and 3,209.58

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Solution

The fourth proportional to 4,976.96, 6,866.78 and 3,209.58 is: 4,428.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,976.96 : 6,866.78 = 3,209.58 : x
  2. Step 2: Convert to fraction form
    4,976.96/6,866.78 = 3,209.58/x
  3. Step 3: Cross multiply
    4,976.96x = 6,866.78 × 3,209.58
  4. Step 4: Simplify right side
    4,976.96x = 22,039,479.75
  5. Step 5: Solve for x
    x = 22,039,479.75/4,976.96
  6. Step 6: Final answer
    x = 4,428.30

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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.