Home / 1,260.05-1,739.01-700.61

Finding the Fourth Proportional to 1,260.05, 1,739.01 and 700.61

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Solution

The fourth proportional to 1,260.05, 1,739.01 and 700.61 is: 966.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.05 : 1,739.01 = 700.61 : x
  2. Step 2: Convert to fraction form
    1,260.05/1,739.01 = 700.61/x
  3. Step 3: Cross multiply
    1,260.05x = 1,739.01 × 700.61
  4. Step 4: Simplify right side
    1,260.05x = 1,218,359.10
  5. Step 5: Solve for x
    x = 1,218,359.10/1,260.05
  6. Step 6: Final answer
    x = 966.92

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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.