Home / 1,717.50-2,370.16-931.54

Finding the Fourth Proportional to 1,717.50, 2,370.16 and 931.54

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Solution

The fourth proportional to 1,717.50, 2,370.16 and 931.54 is: 1,285.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.50 : 2,370.16 = 931.54 : x
  2. Step 2: Convert to fraction form
    1,717.50/2,370.16 = 931.54/x
  3. Step 3: Cross multiply
    1,717.50x = 2,370.16 × 931.54
  4. Step 4: Simplify right side
    1,717.50x = 2,207,898.85
  5. Step 5: Solve for x
    x = 2,207,898.85/1,717.50
  6. Step 6: Final answer
    x = 1,285.53

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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.