Home / 5,087.68-7,627.86-2,312.96

Finding the Fourth Proportional to 5,087.68, 7,627.86 and 2,312.96

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Solution

The fourth proportional to 5,087.68, 7,627.86 and 2,312.96 is: 3,467.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.68 : 7,627.86 = 2,312.96 : x
  2. Step 2: Convert to fraction form
    5,087.68/7,627.86 = 2,312.96/x
  3. Step 3: Cross multiply
    5,087.68x = 7,627.86 × 2,312.96
  4. Step 4: Simplify right side
    5,087.68x = 17,642,935.07
  5. Step 5: Solve for x
    x = 17,642,935.07/5,087.68
  6. Step 6: Final answer
    x = 3,467.78

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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.