Home / 1,336.40-1,844.34-777.04

Finding the Fourth Proportional to 1,336.40, 1,844.34 and 777.04

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Solution

The fourth proportional to 1,336.40, 1,844.34 and 777.04 is: 1,072.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.40 : 1,844.34 = 777.04 : x
  2. Step 2: Convert to fraction form
    1,336.40/1,844.34 = 777.04/x
  3. Step 3: Cross multiply
    1,336.40x = 1,844.34 × 777.04
  4. Step 4: Simplify right side
    1,336.40x = 1,433,118.43
  5. Step 5: Solve for x
    x = 1,433,118.43/1,336.40
  6. Step 6: Final answer
    x = 1,072.37

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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.