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Finding the Fourth Proportional to 5,370.12, 7,408.02 and 3,580.68

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Solution

The fourth proportional to 5,370.12, 7,408.02 and 3,580.68 is: 4,939.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.12 : 7,408.02 = 3,580.68 : x
  2. Step 2: Convert to fraction form
    5,370.12/7,408.02 = 3,580.68/x
  3. Step 3: Cross multiply
    5,370.12x = 7,408.02 × 3,580.68
  4. Step 4: Simplify right side
    5,370.12x = 26,525,749.05
  5. Step 5: Solve for x
    x = 26,525,749.05/5,370.12
  6. Step 6: Final answer
    x = 4,939.51

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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.