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Finding the Fourth Proportional to 7,490.49, 10,336.92 and 4,133.40

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Solution

The fourth proportional to 7,490.49, 10,336.92 and 4,133.40 is: 5,704.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.49 : 10,336.92 = 4,133.40 : x
  2. Step 2: Convert to fraction form
    7,490.49/10,336.92 = 4,133.40/x
  3. Step 3: Cross multiply
    7,490.49x = 10,336.92 × 4,133.40
  4. Step 4: Simplify right side
    7,490.49x = 42,726,625.13
  5. Step 5: Solve for x
    x = 42,726,625.13/7,490.49
  6. Step 6: Final answer
    x = 5,704.12

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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.