Home / 3,886.20-5,820.02-2,239.30

Finding the Fourth Proportional to 3,886.20, 5,820.02 and 2,239.30

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Solution

The fourth proportional to 3,886.20, 5,820.02 and 2,239.30 is: 3,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.20 : 5,820.02 = 2,239.30 : x
  2. Step 2: Convert to fraction form
    3,886.20/5,820.02 = 2,239.30/x
  3. Step 3: Cross multiply
    3,886.20x = 5,820.02 × 2,239.30
  4. Step 4: Simplify right side
    3,886.20x = 13,032,770.79
  5. Step 5: Solve for x
    x = 13,032,770.79/3,886.20
  6. Step 6: Final answer
    x = 3,353.60

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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.