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Finding the Fourth Proportional to 5,343.28, 8,015 and 1,880.56

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Solution

The fourth proportional to 5,343.28, 8,015 and 1,880.56 is: 2,820.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.28 : 8,015 = 1,880.56 : x
  2. Step 2: Convert to fraction form
    5,343.28/8,015 = 1,880.56/x
  3. Step 3: Cross multiply
    5,343.28x = 8,015 × 1,880.56
  4. Step 4: Simplify right side
    5,343.28x = 15,072,688.40
  5. Step 5: Solve for x
    x = 15,072,688.40/5,343.28
  6. Step 6: Final answer
    x = 2,820.87

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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.