Home / 5,175.68-7,761.14-1,665.04

Finding the Fourth Proportional to 5,175.68, 7,761.14 and 1,665.04

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Solution

The fourth proportional to 5,175.68, 7,761.14 and 1,665.04 is: 2,496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175.68 : 7,761.14 = 1,665.04 : x
  2. Step 2: Convert to fraction form
    5,175.68/7,761.14 = 1,665.04/x
  3. Step 3: Cross multiply
    5,175.68x = 7,761.14 × 1,665.04
  4. Step 4: Simplify right side
    5,175.68x = 12,922,580.82
  5. Step 5: Solve for x
    x = 12,922,580.82/5,175.68
  6. Step 6: Final answer
    x = 2,496.79

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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.