Home / 2,783.19-3,838.68-2,283.15

Finding the Fourth Proportional to 2,783.19, 3,838.68 and 2,283.15

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Solution

The fourth proportional to 2,783.19, 3,838.68 and 2,283.15 is: 3,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.19 : 3,838.68 = 2,283.15 : x
  2. Step 2: Convert to fraction form
    2,783.19/3,838.68 = 2,283.15/x
  3. Step 3: Cross multiply
    2,783.19x = 3,838.68 × 2,283.15
  4. Step 4: Simplify right side
    2,783.19x = 8,764,282.24
  5. Step 5: Solve for x
    x = 8,764,282.24/2,783.19
  6. Step 6: Final answer
    x = 3,149.01

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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.