Home / 3,220.95-4,445.01-2,278.44

Finding the Fourth Proportional to 3,220.95, 4,445.01 and 2,278.44

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Solution

The fourth proportional to 3,220.95, 4,445.01 and 2,278.44 is: 3,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.95 : 4,445.01 = 2,278.44 : x
  2. Step 2: Convert to fraction form
    3,220.95/4,445.01 = 2,278.44/x
  3. Step 3: Cross multiply
    3,220.95x = 4,445.01 × 2,278.44
  4. Step 4: Simplify right side
    3,220.95x = 10,127,688.58
  5. Step 5: Solve for x
    x = 10,127,688.58/3,220.95
  6. Step 6: Final answer
    x = 3,144.32

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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.