Home / 4,975.46-6,863.28-3,109.22

Finding the Fourth Proportional to 4,975.46, 6,863.28 and 3,109.22

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Solution

The fourth proportional to 4,975.46, 6,863.28 and 3,109.22 is: 4,288.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,975.46 : 6,863.28 = 3,109.22 : x
  2. Step 2: Convert to fraction form
    4,975.46/6,863.28 = 3,109.22/x
  3. Step 3: Cross multiply
    4,975.46x = 6,863.28 × 3,109.22
  4. Step 4: Simplify right side
    4,975.46x = 21,339,444.69
  5. Step 5: Solve for x
    x = 21,339,444.69/4,975.46
  6. Step 6: Final answer
    x = 4,288.94

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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.