Home / 5,620.24-8,429.73-2,155.06

Finding the Fourth Proportional to 5,620.24, 8,429.73 and 2,155.06

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Solution

The fourth proportional to 5,620.24, 8,429.73 and 2,155.06 is: 3,232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.24 : 8,429.73 = 2,155.06 : x
  2. Step 2: Convert to fraction form
    5,620.24/8,429.73 = 2,155.06/x
  3. Step 3: Cross multiply
    5,620.24x = 8,429.73 × 2,155.06
  4. Step 4: Simplify right side
    5,620.24x = 18,166,573.93
  5. Step 5: Solve for x
    x = 18,166,573.93/5,620.24
  6. Step 6: Final answer
    x = 3,232.35

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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.