Home / 5,720.18-8,580.96-2,021.65

Finding the Fourth Proportional to 5,720.18, 8,580.96 and 2,021.65

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Solution

The fourth proportional to 5,720.18, 8,580.96 and 2,021.65 is: 3,032.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.18 : 8,580.96 = 2,021.65 : x
  2. Step 2: Convert to fraction form
    5,720.18/8,580.96 = 2,021.65/x
  3. Step 3: Cross multiply
    5,720.18x = 8,580.96 × 2,021.65
  4. Step 4: Simplify right side
    5,720.18x = 17,347,644.77
  5. Step 5: Solve for x
    x = 17,347,644.77/5,720.18
  6. Step 6: Final answer
    x = 3,032.71

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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.