Home / 5,619.88-8,428.38-3,864.52

Finding the Fourth Proportional to 5,619.88, 8,428.38 and 3,864.52

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Solution

The fourth proportional to 5,619.88, 8,428.38 and 3,864.52 is: 5,795.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.88 : 8,428.38 = 3,864.52 : x
  2. Step 2: Convert to fraction form
    5,619.88/8,428.38 = 3,864.52/x
  3. Step 3: Cross multiply
    5,619.88x = 8,428.38 × 3,864.52
  4. Step 4: Simplify right side
    5,619.88x = 32,571,643.08
  5. Step 5: Solve for x
    x = 32,571,643.08/5,619.88
  6. Step 6: Final answer
    x = 5,795.79

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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.