Home / 3,690.19-5,092.30-2,011.57

Finding the Fourth Proportional to 3,690.19, 5,092.30 and 2,011.57

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Solution

The fourth proportional to 3,690.19, 5,092.30 and 2,011.57 is: 2,775.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.19 : 5,092.30 = 2,011.57 : x
  2. Step 2: Convert to fraction form
    3,690.19/5,092.30 = 2,011.57/x
  3. Step 3: Cross multiply
    3,690.19x = 5,092.30 × 2,011.57
  4. Step 4: Simplify right side
    3,690.19x = 10,243,507.69
  5. Step 5: Solve for x
    x = 10,243,507.69/3,690.19
  6. Step 6: Final answer
    x = 2,775.87

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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.