Home / 1,846.36-2,550.40-1,368.78

Finding the Fourth Proportional to 1,846.36, 2,550.40 and 1,368.78

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Solution

The fourth proportional to 1,846.36, 2,550.40 and 1,368.78 is: 1,890.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,846.36 : 2,550.40 = 1,368.78 : x
  2. Step 2: Convert to fraction form
    1,846.36/2,550.40 = 1,368.78/x
  3. Step 3: Cross multiply
    1,846.36x = 2,550.40 × 1,368.78
  4. Step 4: Simplify right side
    1,846.36x = 3,490,936.51
  5. Step 5: Solve for x
    x = 3,490,936.51/1,846.36
  6. Step 6: Final answer
    x = 1,890.71

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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.