Home / 1,711.69-2,360.79-1,239.66

Finding the Fourth Proportional to 1,711.69, 2,360.79 and 1,239.66

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Solution

The fourth proportional to 1,711.69, 2,360.79 and 1,239.66 is: 1,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.69 : 2,360.79 = 1,239.66 : x
  2. Step 2: Convert to fraction form
    1,711.69/2,360.79 = 1,239.66/x
  3. Step 3: Cross multiply
    1,711.69x = 2,360.79 × 1,239.66
  4. Step 4: Simplify right side
    1,711.69x = 2,926,576.93
  5. Step 5: Solve for x
    x = 2,926,576.93/1,711.69
  6. Step 6: Final answer
    x = 1,709.76

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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.