Home / 1,336.05-2,005.16-946.43

Finding the Fourth Proportional to 1,336.05, 2,005.16 and 946.43

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Solution

The fourth proportional to 1,336.05, 2,005.16 and 946.43 is: 1,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.05 : 2,005.16 = 946.43 : x
  2. Step 2: Convert to fraction form
    1,336.05/2,005.16 = 946.43/x
  3. Step 3: Cross multiply
    1,336.05x = 2,005.16 × 946.43
  4. Step 4: Simplify right side
    1,336.05x = 1,897,743.58
  5. Step 5: Solve for x
    x = 1,897,743.58/1,336.05
  6. Step 6: Final answer
    x = 1,420.41

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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.