Home / 7,290.24-10,936.80-4,689.60

Finding the Fourth Proportional to 7,290.24, 10,936.80 and 4,689.60

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Solution

The fourth proportional to 7,290.24, 10,936.80 and 4,689.60 is: 7,035.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.24 : 10,936.80 = 4,689.60 : x
  2. Step 2: Convert to fraction form
    7,290.24/10,936.80 = 4,689.60/x
  3. Step 3: Cross multiply
    7,290.24x = 10,936.80 × 4,689.60
  4. Step 4: Simplify right side
    7,290.24x = 51,289,217.28
  5. Step 5: Solve for x
    x = 51,289,217.28/7,290.24
  6. Step 6: Final answer
    x = 7,035.33

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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.