Home / 4,145.48-5,720.69-2,282.48

Finding the Fourth Proportional to 4,145.48, 5,720.69 and 2,282.48

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Solution

The fourth proportional to 4,145.48, 5,720.69 and 2,282.48 is: 3,149.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.48 : 5,720.69 = 2,282.48 : x
  2. Step 2: Convert to fraction form
    4,145.48/5,720.69 = 2,282.48/x
  3. Step 3: Cross multiply
    4,145.48x = 5,720.69 × 2,282.48
  4. Step 4: Simplify right side
    4,145.48x = 13,057,360.51
  5. Step 5: Solve for x
    x = 13,057,360.51/4,145.48
  6. Step 6: Final answer
    x = 3,149.78

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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.