Home / 5,442.80-7,511.40-3,318.03

Finding the Fourth Proportional to 5,442.80, 7,511.40 and 3,318.03

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Solution

The fourth proportional to 5,442.80, 7,511.40 and 3,318.03 is: 4,579.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,442.80 : 7,511.40 = 3,318.03 : x
  2. Step 2: Convert to fraction form
    5,442.80/7,511.40 = 3,318.03/x
  3. Step 3: Cross multiply
    5,442.80x = 7,511.40 × 3,318.03
  4. Step 4: Simplify right side
    5,442.80x = 24,923,050.54
  5. Step 5: Solve for x
    x = 24,923,050.54/5,442.80
  6. Step 6: Final answer
    x = 4,579.09

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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.