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Finding the Fourth Proportional to 1,792.09, 2,686.52 and 637.57

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Solution

The fourth proportional to 1,792.09, 2,686.52 and 637.57 is: 955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.09 : 2,686.52 = 637.57 : x
  2. Step 2: Convert to fraction form
    1,792.09/2,686.52 = 637.57/x
  3. Step 3: Cross multiply
    1,792.09x = 2,686.52 × 637.57
  4. Step 4: Simplify right side
    1,792.09x = 1,712,845.92
  5. Step 5: Solve for x
    x = 1,712,845.92/1,792.09
  6. Step 6: Final answer
    x = 955.78

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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.