Home / 7,900.24-11,850.20-2,973.28

Finding the Fourth Proportional to 7,900.24, 11,850.20 and 2,973.28

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Solution

The fourth proportional to 7,900.24, 11,850.20 and 2,973.28 is: 4,459.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.24 : 11,850.20 = 2,973.28 : x
  2. Step 2: Convert to fraction form
    7,900.24/11,850.20 = 2,973.28/x
  3. Step 3: Cross multiply
    7,900.24x = 11,850.20 × 2,973.28
  4. Step 4: Simplify right side
    7,900.24x = 35,233,962.66
  5. Step 5: Solve for x
    x = 35,233,962.66/7,900.24
  6. Step 6: Final answer
    x = 4,459.86

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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.