Home / 3,221.02-4,445.38-1,962.81

Finding the Fourth Proportional to 3,221.02, 4,445.38 and 1,962.81

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Solution

The fourth proportional to 3,221.02, 4,445.38 and 1,962.81 is: 2,708.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.02 : 4,445.38 = 1,962.81 : x
  2. Step 2: Convert to fraction form
    3,221.02/4,445.38 = 1,962.81/x
  3. Step 3: Cross multiply
    3,221.02x = 4,445.38 × 1,962.81
  4. Step 4: Simplify right side
    3,221.02x = 8,725,436.32
  5. Step 5: Solve for x
    x = 8,725,436.32/3,221.02
  6. Step 6: Final answer
    x = 2,708.90

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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.