Home / 7,715.88-11,577.51-3,819.42

Finding the Fourth Proportional to 7,715.88, 11,577.51 and 3,819.42

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Solution

The fourth proportional to 7,715.88, 11,577.51 and 3,819.42 is: 5,730.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.88 : 11,577.51 = 3,819.42 : x
  2. Step 2: Convert to fraction form
    7,715.88/11,577.51 = 3,819.42/x
  3. Step 3: Cross multiply
    7,715.88x = 11,577.51 × 3,819.42
  4. Step 4: Simplify right side
    7,715.88x = 44,219,373.24
  5. Step 5: Solve for x
    x = 44,219,373.24/7,715.88
  6. Step 6: Final answer
    x = 5,730.96

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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.