Home / 3,878.33-5,816.48-2,645.51

Finding the Fourth Proportional to 3,878.33, 5,816.48 and 2,645.51

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Solution

The fourth proportional to 3,878.33, 5,816.48 and 2,645.51 is: 3,967.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.33 : 5,816.48 = 2,645.51 : x
  2. Step 2: Convert to fraction form
    3,878.33/5,816.48 = 2,645.51/x
  3. Step 3: Cross multiply
    3,878.33x = 5,816.48 × 2,645.51
  4. Step 4: Simplify right side
    3,878.33x = 15,387,513.69
  5. Step 5: Solve for x
    x = 15,387,513.69/3,878.33
  6. Step 6: Final answer
    x = 3,967.57

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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.