Home / 1,260.43-1,739.34-700.65

Finding the Fourth Proportional to 1,260.43, 1,739.34 and 700.65

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Solution

The fourth proportional to 1,260.43, 1,739.34 and 700.65 is: 966.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.43 : 1,739.34 = 700.65 : x
  2. Step 2: Convert to fraction form
    1,260.43/1,739.34 = 700.65/x
  3. Step 3: Cross multiply
    1,260.43x = 1,739.34 × 700.65
  4. Step 4: Simplify right side
    1,260.43x = 1,218,668.57
  5. Step 5: Solve for x
    x = 1,218,668.57/1,260.43
  6. Step 6: Final answer
    x = 966.87

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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.