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Finding the Fourth Proportional to 5,803.31, 8,015.17 and 3,911.64

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Solution

The fourth proportional to 5,803.31, 8,015.17 and 3,911.64 is: 5,402.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,803.31 : 8,015.17 = 3,911.64 : x
  2. Step 2: Convert to fraction form
    5,803.31/8,015.17 = 3,911.64/x
  3. Step 3: Cross multiply
    5,803.31x = 8,015.17 × 3,911.64
  4. Step 4: Simplify right side
    5,803.31x = 31,352,399.94
  5. Step 5: Solve for x
    x = 31,352,399.94/5,803.31
  6. Step 6: Final answer
    x = 5,402.50

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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.