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Finding the Fourth Proportional to 7,456.98, 10,290.90 and 4,270.77

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Solution

The fourth proportional to 7,456.98, 10,290.90 and 4,270.77 is: 5,893.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.98 : 10,290.90 = 4,270.77 : x
  2. Step 2: Convert to fraction form
    7,456.98/10,290.90 = 4,270.77/x
  3. Step 3: Cross multiply
    7,456.98x = 10,290.90 × 4,270.77
  4. Step 4: Simplify right side
    7,456.98x = 43,950,066.99
  5. Step 5: Solve for x
    x = 43,950,066.99/7,456.98
  6. Step 6: Final answer
    x = 5,893.82

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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.