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Finding the Fourth Proportional to 6,512.73, 8,987.02 and 3,680.35

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Solution

The fourth proportional to 6,512.73, 8,987.02 and 3,680.35 is: 5,078.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.73 : 8,987.02 = 3,680.35 : x
  2. Step 2: Convert to fraction form
    6,512.73/8,987.02 = 3,680.35/x
  3. Step 3: Cross multiply
    6,512.73x = 8,987.02 × 3,680.35
  4. Step 4: Simplify right side
    6,512.73x = 33,075,379.06
  5. Step 5: Solve for x
    x = 33,075,379.06/6,512.73
  6. Step 6: Final answer
    x = 5,078.57

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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.