Home / 1,717.74-2,370.48-931.79

Finding the Fourth Proportional to 1,717.74, 2,370.48 and 931.79

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Solution

The fourth proportional to 1,717.74, 2,370.48 and 931.79 is: 1,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.74 : 2,370.48 = 931.79 : x
  2. Step 2: Convert to fraction form
    1,717.74/2,370.48 = 931.79/x
  3. Step 3: Cross multiply
    1,717.74x = 2,370.48 × 931.79
  4. Step 4: Simplify right side
    1,717.74x = 2,208,777.71
  5. Step 5: Solve for x
    x = 2,208,777.71/1,717.74
  6. Step 6: Final answer
    x = 1,285.86

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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.