Home / 1,961.07-2,706.27-1,064.79

Finding the Fourth Proportional to 1,961.07, 2,706.27 and 1,064.79

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Solution

The fourth proportional to 1,961.07, 2,706.27 and 1,064.79 is: 1,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.07 : 2,706.27 = 1,064.79 : x
  2. Step 2: Convert to fraction form
    1,961.07/2,706.27 = 1,064.79/x
  3. Step 3: Cross multiply
    1,961.07x = 2,706.27 × 1,064.79
  4. Step 4: Simplify right side
    1,961.07x = 2,881,603.91
  5. Step 5: Solve for x
    x = 2,881,603.91/1,961.07
  6. Step 6: Final answer
    x = 1,469.40

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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.