Home / 3,642.84-5,027.87-2,131.38

Finding the Fourth Proportional to 3,642.84, 5,027.87 and 2,131.38

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Solution

The fourth proportional to 3,642.84, 5,027.87 and 2,131.38 is: 2,941.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.84 : 5,027.87 = 2,131.38 : x
  2. Step 2: Convert to fraction form
    3,642.84/5,027.87 = 2,131.38/x
  3. Step 3: Cross multiply
    3,642.84x = 5,027.87 × 2,131.38
  4. Step 4: Simplify right side
    3,642.84x = 10,716,306.89
  5. Step 5: Solve for x
    x = 10,716,306.89/3,642.84
  6. Step 6: Final answer
    x = 2,941.75

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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.