Home / 5,564.31-7,680.45-3,208.02

Finding the Fourth Proportional to 5,564.31, 7,680.45 and 3,208.02

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Solution

The fourth proportional to 5,564.31, 7,680.45 and 3,208.02 is: 4,428.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,564.31 : 7,680.45 = 3,208.02 : x
  2. Step 2: Convert to fraction form
    5,564.31/7,680.45 = 3,208.02/x
  3. Step 3: Cross multiply
    5,564.31x = 7,680.45 × 3,208.02
  4. Step 4: Simplify right side
    5,564.31x = 24,639,037.21
  5. Step 5: Solve for x
    x = 24,639,037.21/5,564.31
  6. Step 6: Final answer
    x = 4,428.05

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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.