Home / 3,936.99-5,432.85-2,539.74

Finding the Fourth Proportional to 3,936.99, 5,432.85 and 2,539.74

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Solution

The fourth proportional to 3,936.99, 5,432.85 and 2,539.74 is: 3,504.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.99 : 5,432.85 = 2,539.74 : x
  2. Step 2: Convert to fraction form
    3,936.99/5,432.85 = 2,539.74/x
  3. Step 3: Cross multiply
    3,936.99x = 5,432.85 × 2,539.74
  4. Step 4: Simplify right side
    3,936.99x = 13,798,026.46
  5. Step 5: Solve for x
    x = 13,798,026.46/3,936.99
  6. Step 6: Final answer
    x = 3,504.71

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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.