Home / 7,989.81-11,984.71-2,443.16

Finding the Fourth Proportional to 7,989.81, 11,984.71 and 2,443.16

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Solution

The fourth proportional to 7,989.81, 11,984.71 and 2,443.16 is: 3,664.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.81 : 11,984.71 = 2,443.16 : x
  2. Step 2: Convert to fraction form
    7,989.81/11,984.71 = 2,443.16/x
  3. Step 3: Cross multiply
    7,989.81x = 11,984.71 × 2,443.16
  4. Step 4: Simplify right side
    7,989.81x = 29,280,592.52
  5. Step 5: Solve for x
    x = 29,280,592.52/7,989.81
  6. Step 6: Final answer
    x = 3,664.74

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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.