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Finding the Fourth Proportional to 5,453.56, 7,480.60 and 5,406.70

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Solution

The fourth proportional to 5,453.56, 7,480.60 and 5,406.70 is: 7,416.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,453.56 : 7,480.60 = 5,406.70 : x
  2. Step 2: Convert to fraction form
    5,453.56/7,480.60 = 5,406.70/x
  3. Step 3: Cross multiply
    5,453.56x = 7,480.60 × 5,406.70
  4. Step 4: Simplify right side
    5,453.56x = 40,445,360.02
  5. Step 5: Solve for x
    x = 40,445,360.02/5,453.56
  6. Step 6: Final answer
    x = 7,416.32

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.