Home / 2,767.25-4,148.90-1,122.45

Finding the Fourth Proportional to 2,767.25, 4,148.90 and 1,122.45

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Solution

The fourth proportional to 2,767.25, 4,148.90 and 1,122.45 is: 1,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.25 : 4,148.90 = 1,122.45 : x
  2. Step 2: Convert to fraction form
    2,767.25/4,148.90 = 1,122.45/x
  3. Step 3: Cross multiply
    2,767.25x = 4,148.90 × 1,122.45
  4. Step 4: Simplify right side
    2,767.25x = 4,656,932.81
  5. Step 5: Solve for x
    x = 4,656,932.81/2,767.25
  6. Step 6: Final answer
    x = 1,682.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.