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Finding the Fourth Proportional to 5,185.44, 7,155.60 and 2,827.44

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Solution

The fourth proportional to 5,185.44, 7,155.60 and 2,827.44 is: 3,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.44 : 7,155.60 = 2,827.44 : x
  2. Step 2: Convert to fraction form
    5,185.44/7,155.60 = 2,827.44/x
  3. Step 3: Cross multiply
    5,185.44x = 7,155.60 × 2,827.44
  4. Step 4: Simplify right side
    5,185.44x = 20,232,029.66
  5. Step 5: Solve for x
    x = 20,232,029.66/5,185.44
  6. Step 6: Final answer
    x = 3,901.70

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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.