Home / 1,658.94-2,287.58-1,238.61

Finding the Fourth Proportional to 1,658.94, 2,287.58 and 1,238.61

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Solution

The fourth proportional to 1,658.94, 2,287.58 and 1,238.61 is: 1,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.94 : 2,287.58 = 1,238.61 : x
  2. Step 2: Convert to fraction form
    1,658.94/2,287.58 = 1,238.61/x
  3. Step 3: Cross multiply
    1,658.94x = 2,287.58 × 1,238.61
  4. Step 4: Simplify right side
    1,658.94x = 2,833,419.46
  5. Step 5: Solve for x
    x = 2,833,419.46/1,658.94
  6. Step 6: Final answer
    x = 1,707.97

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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.