Home / 5,630.48-7,769.67-3,112.55

Finding the Fourth Proportional to 5,630.48, 7,769.67 and 3,112.55

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Solution

The fourth proportional to 5,630.48, 7,769.67 and 3,112.55 is: 4,295.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.48 : 7,769.67 = 3,112.55 : x
  2. Step 2: Convert to fraction form
    5,630.48/7,769.67 = 3,112.55/x
  3. Step 3: Cross multiply
    5,630.48x = 7,769.67 × 3,112.55
  4. Step 4: Simplify right side
    5,630.48x = 24,183,447.51
  5. Step 5: Solve for x
    x = 24,183,447.51/5,630.48
  6. Step 6: Final answer
    x = 4,295.10

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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.