Home / 1,717.08-2,369.58-931.12

Finding the Fourth Proportional to 1,717.08, 2,369.58 and 931.12

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Solution

The fourth proportional to 1,717.08, 2,369.58 and 931.12 is: 1,284.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.08 : 2,369.58 = 931.12 : x
  2. Step 2: Convert to fraction form
    1,717.08/2,369.58 = 931.12/x
  3. Step 3: Cross multiply
    1,717.08x = 2,369.58 × 931.12
  4. Step 4: Simplify right side
    1,717.08x = 2,206,363.33
  5. Step 5: Solve for x
    x = 2,206,363.33/1,717.08
  6. Step 6: Final answer
    x = 1,284.95

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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.