Home / 4,003.85-5,519.94-2,807.22

Finding the Fourth Proportional to 4,003.85, 5,519.94 and 2,807.22

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Solution

The fourth proportional to 4,003.85, 5,519.94 and 2,807.22 is: 3,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,003.85 : 5,519.94 = 2,807.22 : x
  2. Step 2: Convert to fraction form
    4,003.85/5,519.94 = 2,807.22/x
  3. Step 3: Cross multiply
    4,003.85x = 5,519.94 × 2,807.22
  4. Step 4: Simplify right side
    4,003.85x = 15,495,685.97
  5. Step 5: Solve for x
    x = 15,495,685.97/4,003.85
  6. Step 6: Final answer
    x = 3,870.20

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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.