Home / 3,681.38-5,081.38-2,110.52

Finding the Fourth Proportional to 3,681.38, 5,081.38 and 2,110.52

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Solution

The fourth proportional to 3,681.38, 5,081.38 and 2,110.52 is: 2,913.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.38 : 5,081.38 = 2,110.52 : x
  2. Step 2: Convert to fraction form
    3,681.38/5,081.38 = 2,110.52/x
  3. Step 3: Cross multiply
    3,681.38x = 5,081.38 × 2,110.52
  4. Step 4: Simplify right side
    3,681.38x = 10,724,354.12
  5. Step 5: Solve for x
    x = 10,724,354.12/3,681.38
  6. Step 6: Final answer
    x = 2,913.13

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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.