Home / 5,135.49-7,086.96-2,777.63

Finding the Fourth Proportional to 5,135.49, 7,086.96 and 2,777.63

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Solution

The fourth proportional to 5,135.49, 7,086.96 and 2,777.63 is: 3,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.49 : 7,086.96 = 2,777.63 : x
  2. Step 2: Convert to fraction form
    5,135.49/7,086.96 = 2,777.63/x
  3. Step 3: Cross multiply
    5,135.49x = 7,086.96 × 2,777.63
  4. Step 4: Simplify right side
    5,135.49x = 19,684,917.27
  5. Step 5: Solve for x
    x = 19,684,917.27/5,135.49
  6. Step 6: Final answer
    x = 3,833.11

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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.