Home / 3,815.55-5,264.82-2,222.46

Finding the Fourth Proportional to 3,815.55, 5,264.82 and 2,222.46

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Solution

The fourth proportional to 3,815.55, 5,264.82 and 2,222.46 is: 3,066.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.55 : 5,264.82 = 2,222.46 : x
  2. Step 2: Convert to fraction form
    3,815.55/5,264.82 = 2,222.46/x
  3. Step 3: Cross multiply
    3,815.55x = 5,264.82 × 2,222.46
  4. Step 4: Simplify right side
    3,815.55x = 11,700,851.86
  5. Step 5: Solve for x
    x = 11,700,851.86/3,815.55
  6. Step 6: Final answer
    x = 3,066.62

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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.