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Finding the Fourth Proportional to 7,519, 10,376.22 and 4,377.28

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Solution

The fourth proportional to 7,519, 10,376.22 and 4,377.28 is: 6,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,519 : 10,376.22 = 4,377.28 : x
  2. Step 2: Convert to fraction form
    7,519/10,376.22 = 4,377.28/x
  3. Step 3: Cross multiply
    7,519x = 10,376.22 × 4,377.28
  4. Step 4: Simplify right side
    7,519x = 45,419,620.28
  5. Step 5: Solve for x
    x = 45,419,620.28/7,519
  6. Step 6: Final answer
    x = 6,040.65

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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.