Home / 3,145.82-4,715.04-1,686.02

Finding the Fourth Proportional to 3,145.82, 4,715.04 and 1,686.02

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Solution

The fourth proportional to 3,145.82, 4,715.04 and 1,686.02 is: 2,527.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.82 : 4,715.04 = 1,686.02 : x
  2. Step 2: Convert to fraction form
    3,145.82/4,715.04 = 1,686.02/x
  3. Step 3: Cross multiply
    3,145.82x = 4,715.04 × 1,686.02
  4. Step 4: Simplify right side
    3,145.82x = 7,949,651.74
  5. Step 5: Solve for x
    x = 7,949,651.74/3,145.82
  6. Step 6: Final answer
    x = 2,527.05

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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.