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Finding the Fourth Proportional to 7,351, 10,145.02 and 4,039.64

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Solution

The fourth proportional to 7,351, 10,145.02 and 4,039.64 is: 5,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351 : 10,145.02 = 4,039.64 : x
  2. Step 2: Convert to fraction form
    7,351/10,145.02 = 4,039.64/x
  3. Step 3: Cross multiply
    7,351x = 10,145.02 × 4,039.64
  4. Step 4: Simplify right side
    7,351x = 40,982,228.59
  5. Step 5: Solve for x
    x = 40,982,228.59/7,351
  6. Step 6: Final answer
    x = 5,575.05

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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.