Home / 1,868.00-2,577.81-1,028.70

Finding the Fourth Proportional to 1,868.00, 2,577.81 and 1,028.70

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Solution

The fourth proportional to 1,868.00, 2,577.81 and 1,028.70 is: 1,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.00 : 2,577.81 = 1,028.70 : x
  2. Step 2: Convert to fraction form
    1,868.00/2,577.81 = 1,028.70/x
  3. Step 3: Cross multiply
    1,868.00x = 2,577.81 × 1,028.70
  4. Step 4: Simplify right side
    1,868.00x = 2,651,793.15
  5. Step 5: Solve for x
    x = 2,651,793.15/1,868.00
  6. Step 6: Final answer
    x = 1,419.59

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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.