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Finding the Fourth Proportional to 5,231.56, 7,219.56 and 2,873.86

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Solution

The fourth proportional to 5,231.56, 7,219.56 and 2,873.86 is: 3,965.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.56 : 7,219.56 = 2,873.86 : x
  2. Step 2: Convert to fraction form
    5,231.56/7,219.56 = 2,873.86/x
  3. Step 3: Cross multiply
    5,231.56x = 7,219.56 × 2,873.86
  4. Step 4: Simplify right side
    5,231.56x = 20,748,004.70
  5. Step 5: Solve for x
    x = 20,748,004.70/5,231.56
  6. Step 6: Final answer
    x = 3,965.93

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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.