Home / 3,209.68-4,427.12-1,967.68

Finding the Fourth Proportional to 3,209.68, 4,427.12 and 1,967.68

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Solution

The fourth proportional to 3,209.68, 4,427.12 and 1,967.68 is: 2,714.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.68 : 4,427.12 = 1,967.68 : x
  2. Step 2: Convert to fraction form
    3,209.68/4,427.12 = 1,967.68/x
  3. Step 3: Cross multiply
    3,209.68x = 4,427.12 × 1,967.68
  4. Step 4: Simplify right side
    3,209.68x = 8,711,155.48
  5. Step 5: Solve for x
    x = 8,711,155.48/3,209.68
  6. Step 6: Final answer
    x = 2,714.03

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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.