Home / 3,116.89-4,301.39-1,858.05

Finding the Fourth Proportional to 3,116.89, 4,301.39 and 1,858.05

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Solution

The fourth proportional to 3,116.89, 4,301.39 and 1,858.05 is: 2,564.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.89 : 4,301.39 = 1,858.05 : x
  2. Step 2: Convert to fraction form
    3,116.89/4,301.39 = 1,858.05/x
  3. Step 3: Cross multiply
    3,116.89x = 4,301.39 × 1,858.05
  4. Step 4: Simplify right side
    3,116.89x = 7,992,187.62
  5. Step 5: Solve for x
    x = 7,992,187.62/3,116.89
  6. Step 6: Final answer
    x = 2,564.16

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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.