Home / 3,886.25-5,829.89-1,422.23

Finding the Fourth Proportional to 3,886.25, 5,829.89 and 1,422.23

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Solution

The fourth proportional to 3,886.25, 5,829.89 and 1,422.23 is: 2,133.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.25 : 5,829.89 = 1,422.23 : x
  2. Step 2: Convert to fraction form
    3,886.25/5,829.89 = 1,422.23/x
  3. Step 3: Cross multiply
    3,886.25x = 5,829.89 × 1,422.23
  4. Step 4: Simplify right side
    3,886.25x = 8,291,444.45
  5. Step 5: Solve for x
    x = 8,291,444.45/3,886.25
  6. Step 6: Final answer
    x = 2,133.53

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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.