Home / 7,845.47-11,769.65-2,580.77

Finding the Fourth Proportional to 7,845.47, 11,769.65 and 2,580.77

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Solution

The fourth proportional to 7,845.47, 11,769.65 and 2,580.77 is: 3,871.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.47 : 11,769.65 = 2,580.77 : x
  2. Step 2: Convert to fraction form
    7,845.47/11,769.65 = 2,580.77/x
  3. Step 3: Cross multiply
    7,845.47x = 11,769.65 × 2,580.77
  4. Step 4: Simplify right side
    7,845.47x = 30,374,759.63
  5. Step 5: Solve for x
    x = 30,374,759.63/7,845.47
  6. Step 6: Final answer
    x = 3,871.63

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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.