Home / 3,878.29-5,351.98-2,284.81

Finding the Fourth Proportional to 3,878.29, 5,351.98 and 2,284.81

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Solution

The fourth proportional to 3,878.29, 5,351.98 and 2,284.81 is: 3,153.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.29 : 5,351.98 = 2,284.81 : x
  2. Step 2: Convert to fraction form
    3,878.29/5,351.98 = 2,284.81/x
  3. Step 3: Cross multiply
    3,878.29x = 5,351.98 × 2,284.81
  4. Step 4: Simplify right side
    3,878.29x = 12,228,257.42
  5. Step 5: Solve for x
    x = 12,228,257.42/3,878.29
  6. Step 6: Final answer
    x = 3,153.00

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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.