Home / 7,424.24-11,140.68-2,807.60

Finding the Fourth Proportional to 7,424.24, 11,140.68 and 2,807.60

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Solution

The fourth proportional to 7,424.24, 11,140.68 and 2,807.60 is: 4,213.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.24 : 11,140.68 = 2,807.60 : x
  2. Step 2: Convert to fraction form
    7,424.24/11,140.68 = 2,807.60/x
  3. Step 3: Cross multiply
    7,424.24x = 11,140.68 × 2,807.60
  4. Step 4: Simplify right side
    7,424.24x = 31,278,573.17
  5. Step 5: Solve for x
    x = 31,278,573.17/7,424.24
  6. Step 6: Final answer
    x = 4,213.03

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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.