Home / 5,243.15-7,856.42-3,160.44

Finding the Fourth Proportional to 5,243.15, 7,856.42 and 3,160.44

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Solution

The fourth proportional to 5,243.15, 7,856.42 and 3,160.44 is: 4,735.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.15 : 7,856.42 = 3,160.44 : x
  2. Step 2: Convert to fraction form
    5,243.15/7,856.42 = 3,160.44/x
  3. Step 3: Cross multiply
    5,243.15x = 7,856.42 × 3,160.44
  4. Step 4: Simplify right side
    5,243.15x = 24,829,728.22
  5. Step 5: Solve for x
    x = 24,829,728.22/5,243.15
  6. Step 6: Final answer
    x = 4,735.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.