Home / 7,813.60-11,726.36-2,887.92

Finding the Fourth Proportional to 7,813.60, 11,726.36 and 2,887.92

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Solution

The fourth proportional to 7,813.60, 11,726.36 and 2,887.92 is: 4,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.60 : 11,726.36 = 2,887.92 : x
  2. Step 2: Convert to fraction form
    7,813.60/11,726.36 = 2,887.92/x
  3. Step 3: Cross multiply
    7,813.60x = 11,726.36 × 2,887.92
  4. Step 4: Simplify right side
    7,813.60x = 33,864,789.57
  5. Step 5: Solve for x
    x = 33,864,789.57/7,813.60
  6. Step 6: Final answer
    x = 4,334.08

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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.