Home / 3,489.22-4,812.24-2,310.40

Finding the Fourth Proportional to 3,489.22, 4,812.24 and 2,310.40

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Solution

The fourth proportional to 3,489.22, 4,812.24 and 2,310.40 is: 3,186.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.22 : 4,812.24 = 2,310.40 : x
  2. Step 2: Convert to fraction form
    3,489.22/4,812.24 = 2,310.40/x
  3. Step 3: Cross multiply
    3,489.22x = 4,812.24 × 2,310.40
  4. Step 4: Simplify right side
    3,489.22x = 11,118,199.30
  5. Step 5: Solve for x
    x = 11,118,199.30/3,489.22
  6. Step 6: Final answer
    x = 3,186.44

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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.