Home / 3,487.69-5,255.52-2,884.96

Finding the Fourth Proportional to 3,487.69, 5,255.52 and 2,884.96

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Solution

The fourth proportional to 3,487.69, 5,255.52 and 2,884.96 is: 4,347.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.69 : 5,255.52 = 2,884.96 : x
  2. Step 2: Convert to fraction form
    3,487.69/5,255.52 = 2,884.96/x
  3. Step 3: Cross multiply
    3,487.69x = 5,255.52 × 2,884.96
  4. Step 4: Simplify right side
    3,487.69x = 15,161,938.70
  5. Step 5: Solve for x
    x = 15,161,938.70/3,487.69
  6. Step 6: Final answer
    x = 4,347.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.