Home / 5,185.24-7,155.63-2,827.38

Finding the Fourth Proportional to 5,185.24, 7,155.63 and 2,827.38

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Solution

The fourth proportional to 5,185.24, 7,155.63 and 2,827.38 is: 3,901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.24 : 7,155.63 = 2,827.38 : x
  2. Step 2: Convert to fraction form
    5,185.24/7,155.63 = 2,827.38/x
  3. Step 3: Cross multiply
    5,185.24x = 7,155.63 × 2,827.38
  4. Step 4: Simplify right side
    5,185.24x = 20,231,649.37
  5. Step 5: Solve for x
    x = 20,231,649.37/5,185.24
  6. Step 6: Final answer
    x = 3,901.78

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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.