Home / 1,867.70-2,577.36-1,028.39

Finding the Fourth Proportional to 1,867.70, 2,577.36 and 1,028.39

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Solution

The fourth proportional to 1,867.70, 2,577.36 and 1,028.39 is: 1,419.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867.70 : 2,577.36 = 1,028.39 : x
  2. Step 2: Convert to fraction form
    1,867.70/2,577.36 = 1,028.39/x
  3. Step 3: Cross multiply
    1,867.70x = 2,577.36 × 1,028.39
  4. Step 4: Simplify right side
    1,867.70x = 2,650,531.25
  5. Step 5: Solve for x
    x = 2,650,531.25/1,867.70
  6. Step 6: Final answer
    x = 1,419.14

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1.5x scale

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.