Home / 3,221.31-4,445.08-1,895.34

Finding the Fourth Proportional to 3,221.31, 4,445.08 and 1,895.34

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Solution

The fourth proportional to 3,221.31, 4,445.08 and 1,895.34 is: 2,615.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.31 : 4,445.08 = 1,895.34 : x
  2. Step 2: Convert to fraction form
    3,221.31/4,445.08 = 1,895.34/x
  3. Step 3: Cross multiply
    3,221.31x = 4,445.08 × 1,895.34
  4. Step 4: Simplify right side
    3,221.31x = 8,424,937.93
  5. Step 5: Solve for x
    x = 8,424,937.93/3,221.31
  6. Step 6: Final answer
    x = 2,615.38

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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.