Home / 7,989.49-11,984.23-2,146.10

Finding the Fourth Proportional to 7,989.49, 11,984.23 and 2,146.10

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Solution

The fourth proportional to 7,989.49, 11,984.23 and 2,146.10 is: 3,219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.49 : 11,984.23 = 2,146.10 : x
  2. Step 2: Convert to fraction form
    7,989.49/11,984.23 = 2,146.10/x
  3. Step 3: Cross multiply
    7,989.49x = 11,984.23 × 2,146.10
  4. Step 4: Simplify right side
    7,989.49x = 25,719,290.72
  5. Step 5: Solve for x
    x = 25,719,290.72/7,989.49
  6. Step 6: Final answer
    x = 3,219.14

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Double scale
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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.