Home / 3,520.60-5,278.93-1,442.05

Finding the Fourth Proportional to 3,520.60, 5,278.93 and 1,442.05

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Solution

The fourth proportional to 3,520.60, 5,278.93 and 1,442.05 is: 2,162.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.60 : 5,278.93 = 1,442.05 : x
  2. Step 2: Convert to fraction form
    3,520.60/5,278.93 = 1,442.05/x
  3. Step 3: Cross multiply
    3,520.60x = 5,278.93 × 1,442.05
  4. Step 4: Simplify right side
    3,520.60x = 7,612,481.01
  5. Step 5: Solve for x
    x = 7,612,481.01/3,520.60
  6. Step 6: Final answer
    x = 2,162.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.