Home / 5,636.12-8,454.31-1,938.53

Finding the Fourth Proportional to 5,636.12, 8,454.31 and 1,938.53

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Solution

The fourth proportional to 5,636.12, 8,454.31 and 1,938.53 is: 2,907.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.12 : 8,454.31 = 1,938.53 : x
  2. Step 2: Convert to fraction form
    5,636.12/8,454.31 = 1,938.53/x
  3. Step 3: Cross multiply
    5,636.12x = 8,454.31 × 1,938.53
  4. Step 4: Simplify right side
    5,636.12x = 16,388,949.85
  5. Step 5: Solve for x
    x = 16,388,949.85/5,636.12
  6. Step 6: Final answer
    x = 2,907.85

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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.