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Finding the Fourth Proportional to 3,417, 5,127.68 and 1,225.68

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Solution

The fourth proportional to 3,417, 5,127.68 and 1,225.68 is: 1,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417 : 5,127.68 = 1,225.68 : x
  2. Step 2: Convert to fraction form
    3,417/5,127.68 = 1,225.68/x
  3. Step 3: Cross multiply
    3,417x = 5,127.68 × 1,225.68
  4. Step 4: Simplify right side
    3,417x = 6,284,894.82
  5. Step 5: Solve for x
    x = 6,284,894.82/3,417
  6. Step 6: Final answer
    x = 1,839.30

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Why These Related Problems?

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