Home / 3,680.95-5,081.18-2,265.21

Finding the Fourth Proportional to 3,680.95, 5,081.18 and 2,265.21

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Solution

The fourth proportional to 3,680.95, 5,081.18 and 2,265.21 is: 3,126.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.95 : 5,081.18 = 2,265.21 : x
  2. Step 2: Convert to fraction form
    3,680.95/5,081.18 = 2,265.21/x
  3. Step 3: Cross multiply
    3,680.95x = 5,081.18 × 2,265.21
  4. Step 4: Simplify right side
    3,680.95x = 11,509,939.75
  5. Step 5: Solve for x
    x = 11,509,939.75/3,680.95
  6. Step 6: Final answer
    x = 3,126.89

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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.