Home / 5,175.16-7,765.78-2,097.08

Finding the Fourth Proportional to 5,175.16, 7,765.78 and 2,097.08

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Solution

The fourth proportional to 5,175.16, 7,765.78 and 2,097.08 is: 3,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.16 : 7,765.78 = 2,097.08 : x
  2. Step 2: Convert to fraction form
    5,175.16/7,765.78 = 2,097.08/x
  3. Step 3: Cross multiply
    5,175.16x = 7,765.78 × 2,097.08
  4. Step 4: Simplify right side
    5,175.16x = 16,285,461.92
  5. Step 5: Solve for x
    x = 16,285,461.92/5,175.16
  6. Step 6: Final answer
    x = 3,146.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.