Home / 5,135.60-7,087.12-2,777.73

Finding the Fourth Proportional to 5,135.60, 7,087.12 and 2,777.73

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Solution

The fourth proportional to 5,135.60, 7,087.12 and 2,777.73 is: 3,833.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.60 : 7,087.12 = 2,777.73 : x
  2. Step 2: Convert to fraction form
    5,135.60/7,087.12 = 2,777.73/x
  3. Step 3: Cross multiply
    5,135.60x = 7,087.12 × 2,777.73
  4. Step 4: Simplify right side
    5,135.60x = 19,686,116.61
  5. Step 5: Solve for x
    x = 19,686,116.61/5,135.60
  6. Step 6: Final answer
    x = 3,833.27

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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.