Home / 3,687.87-5,093.69-2,691.57

Finding the Fourth Proportional to 3,687.87, 5,093.69 and 2,691.57

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Solution

The fourth proportional to 3,687.87, 5,093.69 and 2,691.57 is: 3,717.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.87 : 5,093.69 = 2,691.57 : x
  2. Step 2: Convert to fraction form
    3,687.87/5,093.69 = 2,691.57/x
  3. Step 3: Cross multiply
    3,687.87x = 5,093.69 × 2,691.57
  4. Step 4: Simplify right side
    3,687.87x = 13,710,009.74
  5. Step 5: Solve for x
    x = 13,710,009.74/3,687.87
  6. Step 6: Final answer
    x = 3,717.60

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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.