Home / 2,291.74-3,162.59-1,297.11

Finding the Fourth Proportional to 2,291.74, 3,162.59 and 1,297.11

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Solution

The fourth proportional to 2,291.74, 3,162.59 and 1,297.11 is: 1,790.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.74 : 3,162.59 = 1,297.11 : x
  2. Step 2: Convert to fraction form
    2,291.74/3,162.59 = 1,297.11/x
  3. Step 3: Cross multiply
    2,291.74x = 3,162.59 × 1,297.11
  4. Step 4: Simplify right side
    2,291.74x = 4,102,244.65
  5. Step 5: Solve for x
    x = 4,102,244.65/2,291.74
  6. Step 6: Final answer
    x = 1,790.01

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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.