Home / 6,512.54-8,988.12-3,680.05

Finding the Fourth Proportional to 6,512.54, 8,988.12 and 3,680.05

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Solution

The fourth proportional to 6,512.54, 8,988.12 and 3,680.05 is: 5,078.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.54 : 8,988.12 = 3,680.05 : x
  2. Step 2: Convert to fraction form
    6,512.54/8,988.12 = 3,680.05/x
  3. Step 3: Cross multiply
    6,512.54x = 8,988.12 × 3,680.05
  4. Step 4: Simplify right side
    6,512.54x = 33,076,731.01
  5. Step 5: Solve for x
    x = 33,076,731.01/6,512.54
  6. Step 6: Final answer
    x = 5,078.93

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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.