Home / 1,194.40-1,789.53-646.96

Finding the Fourth Proportional to 1,194.40, 1,789.53 and 646.96

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Solution

The fourth proportional to 1,194.40, 1,789.53 and 646.96 is: 969.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.40 : 1,789.53 = 646.96 : x
  2. Step 2: Convert to fraction form
    1,194.40/1,789.53 = 646.96/x
  3. Step 3: Cross multiply
    1,194.40x = 1,789.53 × 646.96
  4. Step 4: Simplify right side
    1,194.40x = 1,157,754.33
  5. Step 5: Solve for x
    x = 1,157,754.33/1,194.40
  6. Step 6: Final answer
    x = 969.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.