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Finding the Fourth Proportional to 1,760.22, 2,638.66 and 605.16

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Solution

The fourth proportional to 1,760.22, 2,638.66 and 605.16 is: 907.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,760.22 : 2,638.66 = 605.16 : x
  2. Step 2: Convert to fraction form
    1,760.22/2,638.66 = 605.16/x
  3. Step 3: Cross multiply
    1,760.22x = 2,638.66 × 605.16
  4. Step 4: Simplify right side
    1,760.22x = 1,596,811.49
  5. Step 5: Solve for x
    x = 1,596,811.49/1,760.22
  6. Step 6: Final answer
    x = 907.17

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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.