Home / 1,717.36-2,369.97-931.41

Finding the Fourth Proportional to 1,717.36, 2,369.97 and 931.41

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Solution

The fourth proportional to 1,717.36, 2,369.97 and 931.41 is: 1,285.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.36 : 2,369.97 = 931.41 : x
  2. Step 2: Convert to fraction form
    1,717.36/2,369.97 = 931.41/x
  3. Step 3: Cross multiply
    1,717.36x = 2,369.97 × 931.41
  4. Step 4: Simplify right side
    1,717.36x = 2,207,413.76
  5. Step 5: Solve for x
    x = 2,207,413.76/1,717.36
  6. Step 6: Final answer
    x = 1,285.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.