Home / 1,717.69-2,370.41-931.73

Finding the Fourth Proportional to 1,717.69, 2,370.41 and 931.73

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Solution

The fourth proportional to 1,717.69, 2,370.41 and 931.73 is: 1,285.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.69 : 2,370.41 = 931.73 : x
  2. Step 2: Convert to fraction form
    1,717.69/2,370.41 = 931.73/x
  3. Step 3: Cross multiply
    1,717.69x = 2,370.41 × 931.73
  4. Step 4: Simplify right side
    1,717.69x = 2,208,590.36
  5. Step 5: Solve for x
    x = 2,208,590.36/1,717.69
  6. Step 6: Final answer
    x = 1,285.79

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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.