Home / 5,185.77-7,156.26-2,827.94

Finding the Fourth Proportional to 5,185.77, 7,156.26 and 2,827.94

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Solution

The fourth proportional to 5,185.77, 7,156.26 and 2,827.94 is: 3,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.77 : 7,156.26 = 2,827.94 : x
  2. Step 2: Convert to fraction form
    5,185.77/7,156.26 = 2,827.94/x
  3. Step 3: Cross multiply
    5,185.77x = 7,156.26 × 2,827.94
  4. Step 4: Simplify right side
    5,185.77x = 20,237,438.12
  5. Step 5: Solve for x
    x = 20,237,438.12/5,185.77
  6. Step 6: Final answer
    x = 3,902.49

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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.