Home / 5,619.87-8,422.47-4,065.12

Finding the Fourth Proportional to 5,619.87, 8,422.47 and 4,065.12

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Solution

The fourth proportional to 5,619.87, 8,422.47 and 4,065.12 is: 6,092.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.87 : 8,422.47 = 4,065.12 : x
  2. Step 2: Convert to fraction form
    5,619.87/8,422.47 = 4,065.12/x
  3. Step 3: Cross multiply
    5,619.87x = 8,422.47 × 4,065.12
  4. Step 4: Simplify right side
    5,619.87x = 34,238,351.25
  5. Step 5: Solve for x
    x = 34,238,351.25/5,619.87
  6. Step 6: Final answer
    x = 6,092.37

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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.