Home / 2,058.40-3,087.90-759.77

Finding the Fourth Proportional to 2,058.40, 3,087.90 and 759.77

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Solution

The fourth proportional to 2,058.40, 3,087.90 and 759.77 is: 1,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.40 : 3,087.90 = 759.77 : x
  2. Step 2: Convert to fraction form
    2,058.40/3,087.90 = 759.77/x
  3. Step 3: Cross multiply
    2,058.40x = 3,087.90 × 759.77
  4. Step 4: Simplify right side
    2,058.40x = 2,346,093.78
  5. Step 5: Solve for x
    x = 2,346,093.78/2,058.40
  6. Step 6: Final answer
    x = 1,139.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.