Home / 6,482-8,946.78-3,689.12

Finding the Fourth Proportional to 6,482, 8,946.78 and 3,689.12

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Solution

The fourth proportional to 6,482, 8,946.78 and 3,689.12 is: 5,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,482 : 8,946.78 = 3,689.12 : x
  2. Step 2: Convert to fraction form
    6,482/8,946.78 = 3,689.12/x
  3. Step 3: Cross multiply
    6,482x = 8,946.78 × 3,689.12
  4. Step 4: Simplify right side
    6,482x = 33,005,745.03
  5. Step 5: Solve for x
    x = 33,005,745.03/6,482
  6. Step 6: Final answer
    x = 5,091.91

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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.