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Finding the Fourth Proportional to 5,533.96, 7,643.48 and 4,039.48

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Solution

The fourth proportional to 5,533.96, 7,643.48 and 4,039.48 is: 5,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,533.96 : 7,643.48 = 4,039.48 : x
  2. Step 2: Convert to fraction form
    5,533.96/7,643.48 = 4,039.48/x
  3. Step 3: Cross multiply
    5,533.96x = 7,643.48 × 4,039.48
  4. Step 4: Simplify right side
    5,533.96x = 30,875,684.59
  5. Step 5: Solve for x
    x = 30,875,684.59/5,533.96
  6. Step 6: Final answer
    x = 5,579.31

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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.