Home / 5,135.43-7,086.90-2,777.57

Finding the Fourth Proportional to 5,135.43, 7,086.90 and 2,777.57

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Solution

The fourth proportional to 5,135.43, 7,086.90 and 2,777.57 is: 3,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.43 : 7,086.90 = 2,777.57 : x
  2. Step 2: Convert to fraction form
    5,135.43/7,086.90 = 2,777.57/x
  3. Step 3: Cross multiply
    5,135.43x = 7,086.90 × 2,777.57
  4. Step 4: Simplify right side
    5,135.43x = 19,684,325.40
  5. Step 5: Solve for x
    x = 19,684,325.40/5,135.43
  6. Step 6: Final answer
    x = 3,833.04

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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.