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Finding the Fourth Proportional to 5,720.72, 7,894.37 and 3,330.41

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Solution

The fourth proportional to 5,720.72, 7,894.37 and 3,330.41 is: 4,595.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.72 : 7,894.37 = 3,330.41 : x
  2. Step 2: Convert to fraction form
    5,720.72/7,894.37 = 3,330.41/x
  3. Step 3: Cross multiply
    5,720.72x = 7,894.37 × 3,330.41
  4. Step 4: Simplify right side
    5,720.72x = 26,291,432.67
  5. Step 5: Solve for x
    x = 26,291,432.67/5,720.72
  6. Step 6: Final answer
    x = 4,595.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.