Home / 5,140.29-7,093.57-2,782.43

Finding the Fourth Proportional to 5,140.29, 7,093.57 and 2,782.43

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Solution

The fourth proportional to 5,140.29, 7,093.57 and 2,782.43 is: 3,839.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.29 : 7,093.57 = 2,782.43 : x
  2. Step 2: Convert to fraction form
    5,140.29/7,093.57 = 2,782.43/x
  3. Step 3: Cross multiply
    5,140.29x = 7,093.57 × 2,782.43
  4. Step 4: Simplify right side
    5,140.29x = 19,737,361.98
  5. Step 5: Solve for x
    x = 19,737,361.98/5,140.29
  6. Step 6: Final answer
    x = 3,839.74

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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.