Home / 5,406.28-7,458.32-3,388.47

Finding the Fourth Proportional to 5,406.28, 7,458.32 and 3,388.47

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Solution

The fourth proportional to 5,406.28, 7,458.32 and 3,388.47 is: 4,674.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.28 : 7,458.32 = 3,388.47 : x
  2. Step 2: Convert to fraction form
    5,406.28/7,458.32 = 3,388.47/x
  3. Step 3: Cross multiply
    5,406.28x = 7,458.32 × 3,388.47
  4. Step 4: Simplify right side
    5,406.28x = 25,272,293.57
  5. Step 5: Solve for x
    x = 25,272,293.57/5,406.28
  6. Step 6: Final answer
    x = 4,674.62

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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.