Home / 7,752.89-11,629.38-1,909.46

Finding the Fourth Proportional to 7,752.89, 11,629.38 and 1,909.46

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Solution

The fourth proportional to 7,752.89, 11,629.38 and 1,909.46 is: 2,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752.89 : 11,629.38 = 1,909.46 : x
  2. Step 2: Convert to fraction form
    7,752.89/11,629.38 = 1,909.46/x
  3. Step 3: Cross multiply
    7,752.89x = 11,629.38 × 1,909.46
  4. Step 4: Simplify right side
    7,752.89x = 22,205,835.93
  5. Step 5: Solve for x
    x = 22,205,835.93/7,752.89
  6. Step 6: Final answer
    x = 2,864.20

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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.