Home / 3,670.77-5,065.64-1,992.14

Finding the Fourth Proportional to 3,670.77, 5,065.64 and 1,992.14

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Solution

The fourth proportional to 3,670.77, 5,065.64 and 1,992.14 is: 2,749.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.77 : 5,065.64 = 1,992.14 : x
  2. Step 2: Convert to fraction form
    3,670.77/5,065.64 = 1,992.14/x
  3. Step 3: Cross multiply
    3,670.77x = 5,065.64 × 1,992.14
  4. Step 4: Simplify right side
    3,670.77x = 10,091,428.78
  5. Step 5: Solve for x
    x = 10,091,428.78/3,670.77
  6. Step 6: Final answer
    x = 2,749.13

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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.