Home / 3,758.14-5,176.78-2,872.45

Finding the Fourth Proportional to 3,758.14, 5,176.78 and 2,872.45

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Solution

The fourth proportional to 3,758.14, 5,176.78 and 2,872.45 is: 3,956.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758.14 : 5,176.78 = 2,872.45 : x
  2. Step 2: Convert to fraction form
    3,758.14/5,176.78 = 2,872.45/x
  3. Step 3: Cross multiply
    3,758.14x = 5,176.78 × 2,872.45
  4. Step 4: Simplify right side
    3,758.14x = 14,870,041.71
  5. Step 5: Solve for x
    x = 14,870,041.71/3,758.14
  6. Step 6: Final answer
    x = 3,956.76

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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.