Home / 7,208.28-10,807.92-3,307.68

Finding the Fourth Proportional to 7,208.28, 10,807.92 and 3,307.68

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Solution

The fourth proportional to 7,208.28, 10,807.92 and 3,307.68 is: 4,959.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.28 : 10,807.92 = 3,307.68 : x
  2. Step 2: Convert to fraction form
    7,208.28/10,807.92 = 3,307.68/x
  3. Step 3: Cross multiply
    7,208.28x = 10,807.92 × 3,307.68
  4. Step 4: Simplify right side
    7,208.28x = 35,749,140.83
  5. Step 5: Solve for x
    x = 35,749,140.83/7,208.28
  6. Step 6: Final answer
    x = 4,959.46

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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.