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Finding the Fourth Proportional to 5,671.15, 7,826.81 and 3,313.13

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Solution

The fourth proportional to 5,671.15, 7,826.81 and 3,313.13 is: 4,572.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.15 : 7,826.81 = 3,313.13 : x
  2. Step 2: Convert to fraction form
    5,671.15/7,826.81 = 3,313.13/x
  3. Step 3: Cross multiply
    5,671.15x = 7,826.81 × 3,313.13
  4. Step 4: Simplify right side
    5,671.15x = 25,931,183.32
  5. Step 5: Solve for x
    x = 25,931,183.32/5,671.15
  6. Step 6: Final answer
    x = 4,572.48

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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.