Home / 5,630.11-7,769.71-3,112.39

Finding the Fourth Proportional to 5,630.11, 7,769.71 and 3,112.39

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Solution

The fourth proportional to 5,630.11, 7,769.71 and 3,112.39 is: 4,295.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.11 : 7,769.71 = 3,112.39 : x
  2. Step 2: Convert to fraction form
    5,630.11/7,769.71 = 3,112.39/x
  3. Step 3: Cross multiply
    5,630.11x = 7,769.71 × 3,112.39
  4. Step 4: Simplify right side
    5,630.11x = 24,182,367.71
  5. Step 5: Solve for x
    x = 24,182,367.71/5,630.11
  6. Step 6: Final answer
    x = 4,295.19

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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.