Home / 1,867.78-2,577.55-1,028.52

Finding the Fourth Proportional to 1,867.78, 2,577.55 and 1,028.52

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Solution

The fourth proportional to 1,867.78, 2,577.55 and 1,028.52 is: 1,419.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.78 : 2,577.55 = 1,028.52 : x
  2. Step 2: Convert to fraction form
    1,867.78/2,577.55 = 1,028.52/x
  3. Step 3: Cross multiply
    1,867.78x = 2,577.55 × 1,028.52
  4. Step 4: Simplify right side
    1,867.78x = 2,651,065.44
  5. Step 5: Solve for x
    x = 2,651,065.44/1,867.78
  6. Step 6: Final answer
    x = 1,419.36

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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.