Home / 1,717.28-2,369.83-931.33

Finding the Fourth Proportional to 1,717.28, 2,369.83 and 931.33

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Solution

The fourth proportional to 1,717.28, 2,369.83 and 931.33 is: 1,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.28 : 2,369.83 = 931.33 : x
  2. Step 2: Convert to fraction form
    1,717.28/2,369.83 = 931.33/x
  3. Step 3: Cross multiply
    1,717.28x = 2,369.83 × 931.33
  4. Step 4: Simplify right side
    1,717.28x = 2,207,093.77
  5. Step 5: Solve for x
    x = 2,207,093.77/1,717.28
  6. Step 6: Final answer
    x = 1,285.23

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1.5x scale

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.