Home / 5,620.48-8,428.80-2,329.60

Finding the Fourth Proportional to 5,620.48, 8,428.80 and 2,329.60

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Solution

The fourth proportional to 5,620.48, 8,428.80 and 2,329.60 is: 3,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.48 : 8,428.80 = 2,329.60 : x
  2. Step 2: Convert to fraction form
    5,620.48/8,428.80 = 2,329.60/x
  3. Step 3: Cross multiply
    5,620.48x = 8,428.80 × 2,329.60
  4. Step 4: Simplify right side
    5,620.48x = 19,635,732.48
  5. Step 5: Solve for x
    x = 19,635,732.48/5,620.48
  6. Step 6: Final answer
    x = 3,493.60

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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.