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Finding the Fourth Proportional to 7,301.94, 10,076.67 and 3,989.94

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Solution

The fourth proportional to 7,301.94, 10,076.67 and 3,989.94 is: 5,506.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,301.94 : 10,076.67 = 3,989.94 : x
  2. Step 2: Convert to fraction form
    7,301.94/10,076.67 = 3,989.94/x
  3. Step 3: Cross multiply
    7,301.94x = 10,076.67 × 3,989.94
  4. Step 4: Simplify right side
    7,301.94x = 40,205,308.70
  5. Step 5: Solve for x
    x = 40,205,308.70/7,301.94
  6. Step 6: Final answer
    x = 5,506.11

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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.