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Finding the Fourth Proportional to 5,386.08, 7,432.08 and 3,028.08

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Solution

The fourth proportional to 5,386.08, 7,432.08 and 3,028.08 is: 4,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.08 : 7,432.08 = 3,028.08 : x
  2. Step 2: Convert to fraction form
    5,386.08/7,432.08 = 3,028.08/x
  3. Step 3: Cross multiply
    5,386.08x = 7,432.08 × 3,028.08
  4. Step 4: Simplify right side
    5,386.08x = 22,504,932.81
  5. Step 5: Solve for x
    x = 22,504,932.81/5,386.08
  6. Step 6: Final answer
    x = 4,178.35

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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.