Home / 3,176.38-4,384.83-2,390.68

Finding the Fourth Proportional to 3,176.38, 4,384.83 and 2,390.68

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Solution

The fourth proportional to 3,176.38, 4,384.83 and 2,390.68 is: 3,300.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.38 : 4,384.83 = 2,390.68 : x
  2. Step 2: Convert to fraction form
    3,176.38/4,384.83 = 2,390.68/x
  3. Step 3: Cross multiply
    3,176.38x = 4,384.83 × 2,390.68
  4. Step 4: Simplify right side
    3,176.38x = 10,482,725.38
  5. Step 5: Solve for x
    x = 10,482,725.38/3,176.38
  6. Step 6: Final answer
    x = 3,300.21

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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.