Home / 2,778.03-3,829.28-2,217.51

Finding the Fourth Proportional to 2,778.03, 3,829.28 and 2,217.51

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Solution

The fourth proportional to 2,778.03, 3,829.28 and 2,217.51 is: 3,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.03 : 3,829.28 = 2,217.51 : x
  2. Step 2: Convert to fraction form
    2,778.03/3,829.28 = 2,217.51/x
  3. Step 3: Cross multiply
    2,778.03x = 3,829.28 × 2,217.51
  4. Step 4: Simplify right side
    2,778.03x = 8,491,455.61
  5. Step 5: Solve for x
    x = 8,491,455.61/2,778.03
  6. Step 6: Final answer
    x = 3,056.65

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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.