Home / 4,145.16-5,720.70-2,282.28

Finding the Fourth Proportional to 4,145.16, 5,720.70 and 2,282.28

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Solution

The fourth proportional to 4,145.16, 5,720.70 and 2,282.28 is: 3,149.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.16 : 5,720.70 = 2,282.28 : x
  2. Step 2: Convert to fraction form
    4,145.16/5,720.70 = 2,282.28/x
  3. Step 3: Cross multiply
    4,145.16x = 5,720.70 × 2,282.28
  4. Step 4: Simplify right side
    4,145.16x = 13,056,239.20
  5. Step 5: Solve for x
    x = 13,056,239.20/4,145.16
  6. Step 6: Final answer
    x = 3,149.76

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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.