Home / 3,945.55-5,445.12-2,267.44

Finding the Fourth Proportional to 3,945.55, 5,445.12 and 2,267.44

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Solution

The fourth proportional to 3,945.55, 5,445.12 and 2,267.44 is: 3,129.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.55 : 5,445.12 = 2,267.44 : x
  2. Step 2: Convert to fraction form
    3,945.55/5,445.12 = 2,267.44/x
  3. Step 3: Cross multiply
    3,945.55x = 5,445.12 × 2,267.44
  4. Step 4: Simplify right side
    3,945.55x = 12,346,482.89
  5. Step 5: Solve for x
    x = 12,346,482.89/3,945.55
  6. Step 6: Final answer
    x = 3,129.22

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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.