Home / 1,867.69-2,577.45-1,028.45

Finding the Fourth Proportional to 1,867.69, 2,577.45 and 1,028.45

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Solution

The fourth proportional to 1,867.69, 2,577.45 and 1,028.45 is: 1,419.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.69 : 2,577.45 = 1,028.45 : x
  2. Step 2: Convert to fraction form
    1,867.69/2,577.45 = 1,028.45/x
  3. Step 3: Cross multiply
    1,867.69x = 2,577.45 × 1,028.45
  4. Step 4: Simplify right side
    1,867.69x = 2,650,774.25
  5. Step 5: Solve for x
    x = 2,650,774.25/1,867.69
  6. Step 6: Final answer
    x = 1,419.28

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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.