Home / 5,135.42-7,086.86-2,777.56

Finding the Fourth Proportional to 5,135.42, 7,086.86 and 2,777.56

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Solution

The fourth proportional to 5,135.42, 7,086.86 and 2,777.56 is: 3,833.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.42 : 7,086.86 = 2,777.56 : x
  2. Step 2: Convert to fraction form
    5,135.42/7,086.86 = 2,777.56/x
  3. Step 3: Cross multiply
    5,135.42x = 7,086.86 × 2,777.56
  4. Step 4: Simplify right side
    5,135.42x = 19,684,147.26
  5. Step 5: Solve for x
    x = 19,684,147.26/5,135.42
  6. Step 6: Final answer
    x = 3,833.01

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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.