Home / 2,847.88-3,926.90-2,335.30

Finding the Fourth Proportional to 2,847.88, 3,926.90 and 2,335.30

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Solution

The fourth proportional to 2,847.88, 3,926.90 and 2,335.30 is: 3,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,847.88 : 3,926.90 = 2,335.30 : x
  2. Step 2: Convert to fraction form
    2,847.88/3,926.90 = 2,335.30/x
  3. Step 3: Cross multiply
    2,847.88x = 3,926.90 × 2,335.30
  4. Step 4: Simplify right side
    2,847.88x = 9,170,489.57
  5. Step 5: Solve for x
    x = 9,170,489.57/2,847.88
  6. Step 6: Final answer
    x = 3,220.11

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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.