Home / 4,145.40-5,720.68-2,282.40

Finding the Fourth Proportional to 4,145.40, 5,720.68 and 2,282.40

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Solution

The fourth proportional to 4,145.40, 5,720.68 and 2,282.40 is: 3,149.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.40 : 5,720.68 = 2,282.40 : x
  2. Step 2: Convert to fraction form
    4,145.40/5,720.68 = 2,282.40/x
  3. Step 3: Cross multiply
    4,145.40x = 5,720.68 × 2,282.40
  4. Step 4: Simplify right side
    4,145.40x = 13,056,880.03
  5. Step 5: Solve for x
    x = 13,056,880.03/4,145.40
  6. Step 6: Final answer
    x = 3,149.73

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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.