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Finding the Fourth Proportional to 5,388.99, 7,436.73 and 3,031.13

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Solution

The fourth proportional to 5,388.99, 7,436.73 and 3,031.13 is: 4,182.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.99 : 7,436.73 = 3,031.13 : x
  2. Step 2: Convert to fraction form
    5,388.99/7,436.73 = 3,031.13/x
  3. Step 3: Cross multiply
    5,388.99x = 7,436.73 × 3,031.13
  4. Step 4: Simplify right side
    5,388.99x = 22,541,658.22
  5. Step 5: Solve for x
    x = 22,541,658.22/5,388.99
  6. Step 6: Final answer
    x = 4,182.91

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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.