Home / 6,512.79-8,987.96-3,680.29

Finding the Fourth Proportional to 6,512.79, 8,987.96 and 3,680.29

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Solution

The fourth proportional to 6,512.79, 8,987.96 and 3,680.29 is: 5,078.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.79 : 8,987.96 = 3,680.29 : x
  2. Step 2: Convert to fraction form
    6,512.79/8,987.96 = 3,680.29/x
  3. Step 3: Cross multiply
    6,512.79x = 8,987.96 × 3,680.29
  4. Step 4: Simplify right side
    6,512.79x = 33,078,269.19
  5. Step 5: Solve for x
    x = 33,078,269.19/6,512.79
  6. Step 6: Final answer
    x = 5,078.97

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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.