Home / 4,081.65-5,635.85-3,135.95

Finding the Fourth Proportional to 4,081.65, 5,635.85 and 3,135.95

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Solution

The fourth proportional to 4,081.65, 5,635.85 and 3,135.95 is: 4,330.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.65 : 5,635.85 = 3,135.95 : x
  2. Step 2: Convert to fraction form
    4,081.65/5,635.85 = 3,135.95/x
  3. Step 3: Cross multiply
    4,081.65x = 5,635.85 × 3,135.95
  4. Step 4: Simplify right side
    4,081.65x = 17,673,699.95
  5. Step 5: Solve for x
    x = 17,673,699.95/4,081.65
  6. Step 6: Final answer
    x = 4,330.04

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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.