Home / 5,617.40-8,429.37-2,109.85

Finding the Fourth Proportional to 5,617.40, 8,429.37 and 2,109.85

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Solution

The fourth proportional to 5,617.40, 8,429.37 and 2,109.85 is: 3,166.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.40 : 8,429.37 = 2,109.85 : x
  2. Step 2: Convert to fraction form
    5,617.40/8,429.37 = 2,109.85/x
  3. Step 3: Cross multiply
    5,617.40x = 8,429.37 × 2,109.85
  4. Step 4: Simplify right side
    5,617.40x = 17,784,677.31
  5. Step 5: Solve for x
    x = 17,784,677.31/5,617.40
  6. Step 6: Final answer
    x = 3,166.00

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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.