Home / 3,864.78-5,333.65-2,186.26

Finding the Fourth Proportional to 3,864.78, 5,333.65 and 2,186.26

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Solution

The fourth proportional to 3,864.78, 5,333.65 and 2,186.26 is: 3,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.78 : 5,333.65 = 2,186.26 : x
  2. Step 2: Convert to fraction form
    3,864.78/5,333.65 = 2,186.26/x
  3. Step 3: Cross multiply
    3,864.78x = 5,333.65 × 2,186.26
  4. Step 4: Simplify right side
    3,864.78x = 11,660,726.85
  5. Step 5: Solve for x
    x = 11,660,726.85/3,864.78
  6. Step 6: Final answer
    x = 3,017.18

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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.