Home / 3,950.14-5,451.42-2,378.74

Finding the Fourth Proportional to 3,950.14, 5,451.42 and 2,378.74

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Solution

The fourth proportional to 3,950.14, 5,451.42 and 2,378.74 is: 3,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.14 : 5,451.42 = 2,378.74 : x
  2. Step 2: Convert to fraction form
    3,950.14/5,451.42 = 2,378.74/x
  3. Step 3: Cross multiply
    3,950.14x = 5,451.42 × 2,378.74
  4. Step 4: Simplify right side
    3,950.14x = 12,967,510.81
  5. Step 5: Solve for x
    x = 12,967,510.81/3,950.14
  6. Step 6: Final answer
    x = 3,282.80

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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.