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Finding the Fourth Proportional to 2,257.77, 3,118.16 and 1,551.48

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Solution

The fourth proportional to 2,257.77, 3,118.16 and 1,551.48 is: 2,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.77 : 3,118.16 = 1,551.48 : x
  2. Step 2: Convert to fraction form
    2,257.77/3,118.16 = 1,551.48/x
  3. Step 3: Cross multiply
    2,257.77x = 3,118.16 × 1,551.48
  4. Step 4: Simplify right side
    2,257.77x = 4,837,762.88
  5. Step 5: Solve for x
    x = 4,837,762.88/2,257.77
  6. Step 6: Final answer
    x = 2,142.72

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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.