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Finding the Fourth Proportional to 5,309.90, 7,328.51 and 3,073.13

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Solution

The fourth proportional to 5,309.90, 7,328.51 and 3,073.13 is: 4,241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.90 : 7,328.51 = 3,073.13 : x
  2. Step 2: Convert to fraction form
    5,309.90/7,328.51 = 3,073.13/x
  3. Step 3: Cross multiply
    5,309.90x = 7,328.51 × 3,073.13
  4. Step 4: Simplify right side
    5,309.90x = 22,521,463.94
  5. Step 5: Solve for x
    x = 22,521,463.94/5,309.90
  6. Step 6: Final answer
    x = 4,241.41

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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.