Home / 5,213.45-7,820.53-2,291.76

Finding the Fourth Proportional to 5,213.45, 7,820.53 and 2,291.76

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Solution

The fourth proportional to 5,213.45, 7,820.53 and 2,291.76 is: 3,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.45 : 7,820.53 = 2,291.76 : x
  2. Step 2: Convert to fraction form
    5,213.45/7,820.53 = 2,291.76/x
  3. Step 3: Cross multiply
    5,213.45x = 7,820.53 × 2,291.76
  4. Step 4: Simplify right side
    5,213.45x = 17,922,772.10
  5. Step 5: Solve for x
    x = 17,922,772.10/5,213.45
  6. Step 6: Final answer
    x = 3,437.79

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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.