Home / 5,185.28-7,155.47-2,827.43

Finding the Fourth Proportional to 5,185.28, 7,155.47 and 2,827.43

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Solution

The fourth proportional to 5,185.28, 7,155.47 and 2,827.43 is: 3,901.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.28 : 7,155.47 = 2,827.43 : x
  2. Step 2: Convert to fraction form
    5,185.28/7,155.47 = 2,827.43/x
  3. Step 3: Cross multiply
    5,185.28x = 7,155.47 × 2,827.43
  4. Step 4: Simplify right side
    5,185.28x = 20,231,576.40
  5. Step 5: Solve for x
    x = 20,231,576.40/5,185.28
  6. Step 6: Final answer
    x = 3,901.73

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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.