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Finding the Fourth Proportional to 5,313.28, 7,969.92 and 1,850.56

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Solution

The fourth proportional to 5,313.28, 7,969.92 and 1,850.56 is: 2,775.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.28 : 7,969.92 = 1,850.56 : x
  2. Step 2: Convert to fraction form
    5,313.28/7,969.92 = 1,850.56/x
  3. Step 3: Cross multiply
    5,313.28x = 7,969.92 × 1,850.56
  4. Step 4: Simplify right side
    5,313.28x = 14,748,815.16
  5. Step 5: Solve for x
    x = 14,748,815.16/5,313.28
  6. Step 6: Final answer
    x = 2,775.84

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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.