Home / 2,859.65-4,286.28-1,297.31

Finding the Fourth Proportional to 2,859.65, 4,286.28 and 1,297.31

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Solution

The fourth proportional to 2,859.65, 4,286.28 and 1,297.31 is: 1,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.65 : 4,286.28 = 1,297.31 : x
  2. Step 2: Convert to fraction form
    2,859.65/4,286.28 = 1,297.31/x
  3. Step 3: Cross multiply
    2,859.65x = 4,286.28 × 1,297.31
  4. Step 4: Simplify right side
    2,859.65x = 5,560,612.48
  5. Step 5: Solve for x
    x = 5,560,612.48/2,859.65
  6. Step 6: Final answer
    x = 1,944.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.