Home / 1,717.49-2,370.13-931.54

Finding the Fourth Proportional to 1,717.49, 2,370.13 and 931.54

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Solution

The fourth proportional to 1,717.49, 2,370.13 and 931.54 is: 1,285.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.49 : 2,370.13 = 931.54 : x
  2. Step 2: Convert to fraction form
    1,717.49/2,370.13 = 931.54/x
  3. Step 3: Cross multiply
    1,717.49x = 2,370.13 × 931.54
  4. Step 4: Simplify right side
    1,717.49x = 2,207,870.90
  5. Step 5: Solve for x
    x = 2,207,870.90/1,717.49
  6. Step 6: Final answer
    x = 1,285.52

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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.