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Finding the Fourth Proportional to 3,448.98, 5,172.95 and 1,257.19

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Solution

The fourth proportional to 3,448.98, 5,172.95 and 1,257.19 is: 1,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,448.98 : 5,172.95 = 1,257.19 : x
  2. Step 2: Convert to fraction form
    3,448.98/5,172.95 = 1,257.19/x
  3. Step 3: Cross multiply
    3,448.98x = 5,172.95 × 1,257.19
  4. Step 4: Simplify right side
    3,448.98x = 6,503,381.01
  5. Step 5: Solve for x
    x = 6,503,381.01/3,448.98
  6. Step 6: Final answer
    x = 1,885.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.