Home / 4,072.77-5,613.57-3,115.35

Finding the Fourth Proportional to 4,072.77, 5,613.57 and 3,115.35

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Solution

The fourth proportional to 4,072.77, 5,613.57 and 3,115.35 is: 4,293.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.77 : 5,613.57 = 3,115.35 : x
  2. Step 2: Convert to fraction form
    4,072.77/5,613.57 = 3,115.35/x
  3. Step 3: Cross multiply
    4,072.77x = 5,613.57 × 3,115.35
  4. Step 4: Simplify right side
    4,072.77x = 17,488,235.30
  5. Step 5: Solve for x
    x = 17,488,235.30/4,072.77
  6. Step 6: Final answer
    x = 4,293.94

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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.