Home / 2,291.27-3,161.40-1,346.74

Finding the Fourth Proportional to 2,291.27, 3,161.40 and 1,346.74

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Solution

The fourth proportional to 2,291.27, 3,161.40 and 1,346.74 is: 1,858.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.27 : 3,161.40 = 1,346.74 : x
  2. Step 2: Convert to fraction form
    2,291.27/3,161.40 = 1,346.74/x
  3. Step 3: Cross multiply
    2,291.27x = 3,161.40 × 1,346.74
  4. Step 4: Simplify right side
    2,291.27x = 4,257,570.88
  5. Step 5: Solve for x
    x = 4,257,570.88/2,291.27
  6. Step 6: Final answer
    x = 1,858.17

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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.