Home / 2,858.51-3,943.80-1,679.36

Finding the Fourth Proportional to 2,858.51, 3,943.80 and 1,679.36

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Solution

The fourth proportional to 2,858.51, 3,943.80 and 1,679.36 is: 2,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.51 : 3,943.80 = 1,679.36 : x
  2. Step 2: Convert to fraction form
    2,858.51/3,943.80 = 1,679.36/x
  3. Step 3: Cross multiply
    2,858.51x = 3,943.80 × 1,679.36
  4. Step 4: Simplify right side
    2,858.51x = 6,623,040.25
  5. Step 5: Solve for x
    x = 6,623,040.25/2,858.51
  6. Step 6: Final answer
    x = 2,316.96

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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.