Home / 6,632.39-9,948.57-3,120.20

Finding the Fourth Proportional to 6,632.39, 9,948.57 and 3,120.20

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Solution

The fourth proportional to 6,632.39, 9,948.57 and 3,120.20 is: 4,680.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,632.39 : 9,948.57 = 3,120.20 : x
  2. Step 2: Convert to fraction form
    6,632.39/9,948.57 = 3,120.20/x
  3. Step 3: Cross multiply
    6,632.39x = 9,948.57 × 3,120.20
  4. Step 4: Simplify right side
    6,632.39x = 31,041,478.37
  5. Step 5: Solve for x
    x = 31,041,478.37/6,632.39
  6. Step 6: Final answer
    x = 4,680.29

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Similar ratio
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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.