Home / 3,520.12-5,280.33-1,180.39

Finding the Fourth Proportional to 3,520.12, 5,280.33 and 1,180.39

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Solution

The fourth proportional to 3,520.12, 5,280.33 and 1,180.39 is: 1,770.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.12 : 5,280.33 = 1,180.39 : x
  2. Step 2: Convert to fraction form
    3,520.12/5,280.33 = 1,180.39/x
  3. Step 3: Cross multiply
    3,520.12x = 5,280.33 × 1,180.39
  4. Step 4: Simplify right side
    3,520.12x = 6,232,848.73
  5. Step 5: Solve for x
    x = 6,232,848.73/3,520.12
  6. Step 6: Final answer
    x = 1,770.64

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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.