Home / 1,296.43-1,789.08-706.95

Finding the Fourth Proportional to 1,296.43, 1,789.08 and 706.95

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Solution

The fourth proportional to 1,296.43, 1,789.08 and 706.95 is: 975.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.43 : 1,789.08 = 706.95 : x
  2. Step 2: Convert to fraction form
    1,296.43/1,789.08 = 706.95/x
  3. Step 3: Cross multiply
    1,296.43x = 1,789.08 × 706.95
  4. Step 4: Simplify right side
    1,296.43x = 1,264,790.11
  5. Step 5: Solve for x
    x = 1,264,790.11/1,296.43
  6. Step 6: Final answer
    x = 975.59

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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.