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Finding the Fourth Proportional to 5,313.99, 7,328.21 and 3,518.62

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Solution

The fourth proportional to 5,313.99, 7,328.21 and 3,518.62 is: 4,852.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.99 : 7,328.21 = 3,518.62 : x
  2. Step 2: Convert to fraction form
    5,313.99/7,328.21 = 3,518.62/x
  3. Step 3: Cross multiply
    5,313.99x = 7,328.21 × 3,518.62
  4. Step 4: Simplify right side
    5,313.99x = 25,785,186.27
  5. Step 5: Solve for x
    x = 25,785,186.27/5,313.99
  6. Step 6: Final answer
    x = 4,852.32

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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.