Home / 3,786.68-5,225.73-2,108.18

Finding the Fourth Proportional to 3,786.68, 5,225.73 and 2,108.18

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Solution

The fourth proportional to 3,786.68, 5,225.73 and 2,108.18 is: 2,909.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.68 : 5,225.73 = 2,108.18 : x
  2. Step 2: Convert to fraction form
    3,786.68/5,225.73 = 2,108.18/x
  3. Step 3: Cross multiply
    3,786.68x = 5,225.73 × 2,108.18
  4. Step 4: Simplify right side
    3,786.68x = 11,016,779.47
  5. Step 5: Solve for x
    x = 11,016,779.47/3,786.68
  6. Step 6: Final answer
    x = 2,909.35

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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.