Home / 5,631.12-7,770.60-3,112.56

Finding the Fourth Proportional to 5,631.12, 7,770.60 and 3,112.56

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Solution

The fourth proportional to 5,631.12, 7,770.60 and 3,112.56 is: 4,295.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.12 : 7,770.60 = 3,112.56 : x
  2. Step 2: Convert to fraction form
    5,631.12/7,770.60 = 3,112.56/x
  3. Step 3: Cross multiply
    5,631.12x = 7,770.60 × 3,112.56
  4. Step 4: Simplify right side
    5,631.12x = 24,186,458.74
  5. Step 5: Solve for x
    x = 24,186,458.74/5,631.12
  6. Step 6: Final answer
    x = 4,295.14

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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.