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Finding the Fourth Proportional to 5,388.49, 7,436.04 and 3,030.63

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Solution

The fourth proportional to 5,388.49, 7,436.04 and 3,030.63 is: 4,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.49 : 7,436.04 = 3,030.63 : x
  2. Step 2: Convert to fraction form
    5,388.49/7,436.04 = 3,030.63/x
  3. Step 3: Cross multiply
    5,388.49x = 7,436.04 × 3,030.63
  4. Step 4: Simplify right side
    5,388.49x = 22,535,885.91
  5. Step 5: Solve for x
    x = 22,535,885.91/5,388.49
  6. Step 6: Final answer
    x = 4,182.23

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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.