Home / 1,867.71-2,577.40-1,028.47

Finding the Fourth Proportional to 1,867.71, 2,577.40 and 1,028.47

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Solution

The fourth proportional to 1,867.71, 2,577.40 and 1,028.47 is: 1,419.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.71 : 2,577.40 = 1,028.47 : x
  2. Step 2: Convert to fraction form
    1,867.71/2,577.40 = 1,028.47/x
  3. Step 3: Cross multiply
    1,867.71x = 2,577.40 × 1,028.47
  4. Step 4: Simplify right side
    1,867.71x = 2,650,778.58
  5. Step 5: Solve for x
    x = 2,650,778.58/1,867.71
  6. Step 6: Final answer
    x = 1,419.27

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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.