Home / 2,290.81-3,161.19-1,346.46

Finding the Fourth Proportional to 2,290.81, 3,161.19 and 1,346.46

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Solution

The fourth proportional to 2,290.81, 3,161.19 and 1,346.46 is: 1,858.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.81 : 3,161.19 = 1,346.46 : x
  2. Step 2: Convert to fraction form
    2,290.81/3,161.19 = 1,346.46/x
  3. Step 3: Cross multiply
    2,290.81x = 3,161.19 × 1,346.46
  4. Step 4: Simplify right side
    2,290.81x = 4,256,415.89
  5. Step 5: Solve for x
    x = 4,256,415.89/2,290.81
  6. Step 6: Final answer
    x = 1,858.04

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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.