Home / 1,670.92-2,306.70-1,297.06

Finding the Fourth Proportional to 1,670.92, 2,306.70 and 1,297.06

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Solution

The fourth proportional to 1,670.92, 2,306.70 and 1,297.06 is: 1,790.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.92 : 2,306.70 = 1,297.06 : x
  2. Step 2: Convert to fraction form
    1,670.92/2,306.70 = 1,297.06/x
  3. Step 3: Cross multiply
    1,670.92x = 2,306.70 × 1,297.06
  4. Step 4: Simplify right side
    1,670.92x = 2,991,928.30
  5. Step 5: Solve for x
    x = 2,991,928.30/1,670.92
  6. Step 6: Final answer
    x = 1,790.59

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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.