Home / 5,134.47-7,086.30-2,896.55

Finding the Fourth Proportional to 5,134.47, 7,086.30 and 2,896.55

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Solution

The fourth proportional to 5,134.47, 7,086.30 and 2,896.55 is: 3,997.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,134.47 : 7,086.30 = 2,896.55 : x
  2. Step 2: Convert to fraction form
    5,134.47/7,086.30 = 2,896.55/x
  3. Step 3: Cross multiply
    5,134.47x = 7,086.30 × 2,896.55
  4. Step 4: Simplify right side
    5,134.47x = 20,525,815.83
  5. Step 5: Solve for x
    x = 20,525,815.83/5,134.47
  6. Step 6: Final answer
    x = 3,997.65

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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.