Home / 2,006.28-2,768.68-1,122.08

Finding the Fourth Proportional to 2,006.28, 2,768.68 and 1,122.08

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Solution

The fourth proportional to 2,006.28, 2,768.68 and 1,122.08 is: 1,548.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.28 : 2,768.68 = 1,122.08 : x
  2. Step 2: Convert to fraction form
    2,006.28/2,768.68 = 1,122.08/x
  3. Step 3: Cross multiply
    2,006.28x = 2,768.68 × 1,122.08
  4. Step 4: Simplify right side
    2,006.28x = 3,106,680.45
  5. Step 5: Solve for x
    x = 3,106,680.45/2,006.28
  6. Step 6: Final answer
    x = 1,548.48

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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.