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Finding the Fourth Proportional to 3,615.92, 4,984.02 and 2,420.49

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Solution

The fourth proportional to 3,615.92, 4,984.02 and 2,420.49 is: 3,336.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.92 : 4,984.02 = 2,420.49 : x
  2. Step 2: Convert to fraction form
    3,615.92/4,984.02 = 2,420.49/x
  3. Step 3: Cross multiply
    3,615.92x = 4,984.02 × 2,420.49
  4. Step 4: Simplify right side
    3,615.92x = 12,063,770.57
  5. Step 5: Solve for x
    x = 12,063,770.57/3,615.92
  6. Step 6: Final answer
    x = 3,336.29

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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.