Home / 1,868.17-2,577.99-1,028.88

Finding the Fourth Proportional to 1,868.17, 2,577.99 and 1,028.88

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Solution

The fourth proportional to 1,868.17, 2,577.99 and 1,028.88 is: 1,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.17 : 2,577.99 = 1,028.88 : x
  2. Step 2: Convert to fraction form
    1,868.17/2,577.99 = 1,028.88/x
  3. Step 3: Cross multiply
    1,868.17x = 2,577.99 × 1,028.88
  4. Step 4: Simplify right side
    1,868.17x = 2,652,442.35
  5. Step 5: Solve for x
    x = 2,652,442.35/1,868.17
  6. Step 6: Final answer
    x = 1,419.81

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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.