Home / 4,072.36-5,616.64-2,813.88

Finding the Fourth Proportional to 4,072.36, 5,616.64 and 2,813.88

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Solution

The fourth proportional to 4,072.36, 5,616.64 and 2,813.88 is: 3,880.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.36 : 5,616.64 = 2,813.88 : x
  2. Step 2: Convert to fraction form
    4,072.36/5,616.64 = 2,813.88/x
  3. Step 3: Cross multiply
    4,072.36x = 5,616.64 × 2,813.88
  4. Step 4: Simplify right side
    4,072.36x = 15,804,550.96
  5. Step 5: Solve for x
    x = 15,804,550.96/4,072.36
  6. Step 6: Final answer
    x = 3,880.93

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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.