Home / 5,140.39-7,093.73-2,782.53

Finding the Fourth Proportional to 5,140.39, 7,093.73 and 2,782.53

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Solution

The fourth proportional to 5,140.39, 7,093.73 and 2,782.53 is: 3,839.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.39 : 7,093.73 = 2,782.53 : x
  2. Step 2: Convert to fraction form
    5,140.39/7,093.73 = 2,782.53/x
  3. Step 3: Cross multiply
    5,140.39x = 7,093.73 × 2,782.53
  4. Step 4: Simplify right side
    5,140.39x = 19,738,481.07
  5. Step 5: Solve for x
    x = 19,738,481.07/5,140.39
  6. Step 6: Final answer
    x = 3,839.88

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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.