Home / 6,631.20-9,946.24-3,120.38

Finding the Fourth Proportional to 6,631.20, 9,946.24 and 3,120.38

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Solution

The fourth proportional to 6,631.20, 9,946.24 and 3,120.38 is: 4,680.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.20 : 9,946.24 = 3,120.38 : x
  2. Step 2: Convert to fraction form
    6,631.20/9,946.24 = 3,120.38/x
  3. Step 3: Cross multiply
    6,631.20x = 9,946.24 × 3,120.38
  4. Step 4: Simplify right side
    6,631.20x = 31,036,048.37
  5. Step 5: Solve for x
    x = 31,036,048.37/6,631.20
  6. Step 6: Final answer
    x = 4,680.31

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1.5x scale

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.