Home / 2,814.13-3,880.87-2,226.07

Finding the Fourth Proportional to 2,814.13, 3,880.87 and 2,226.07

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Solution

The fourth proportional to 2,814.13, 3,880.87 and 2,226.07 is: 3,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.13 : 3,880.87 = 2,226.07 : x
  2. Step 2: Convert to fraction form
    2,814.13/3,880.87 = 2,226.07/x
  3. Step 3: Cross multiply
    2,814.13x = 3,880.87 × 2,226.07
  4. Step 4: Simplify right side
    2,814.13x = 8,639,088.28
  5. Step 5: Solve for x
    x = 8,639,088.28/2,814.13
  6. Step 6: Final answer
    x = 3,069.90

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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.