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Finding the Fourth Proportional to 2,058.88, 3,088.64 and 889.21

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Solution

The fourth proportional to 2,058.88, 3,088.64 and 889.21 is: 1,333.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.88 : 3,088.64 = 889.21 : x
  2. Step 2: Convert to fraction form
    2,058.88/3,088.64 = 889.21/x
  3. Step 3: Cross multiply
    2,058.88x = 3,088.64 × 889.21
  4. Step 4: Simplify right side
    2,058.88x = 2,746,449.57
  5. Step 5: Solve for x
    x = 2,746,449.57/2,058.88
  6. Step 6: Final answer
    x = 1,333.95

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