Home / 5,631-7,770.60-3,112.92

Finding the Fourth Proportional to 5,631, 7,770.60 and 3,112.92

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Solution

The fourth proportional to 5,631, 7,770.60 and 3,112.92 is: 4,295.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631 : 7,770.60 = 3,112.92 : x
  2. Step 2: Convert to fraction form
    5,631/7,770.60 = 3,112.92/x
  3. Step 3: Cross multiply
    5,631x = 7,770.60 × 3,112.92
  4. Step 4: Simplify right side
    5,631x = 24,189,256.15
  5. Step 5: Solve for x
    x = 24,189,256.15/5,631
  6. Step 6: Final answer
    x = 4,295.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.