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Finding the Fourth Proportional to 2,058, 2,840.09 and 1,126.50

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Solution

The fourth proportional to 2,058, 2,840.09 and 1,126.50 is: 1,554.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058 : 2,840.09 = 1,126.50 : x
  2. Step 2: Convert to fraction form
    2,058/2,840.09 = 1,126.50/x
  3. Step 3: Cross multiply
    2,058x = 2,840.09 × 1,126.50
  4. Step 4: Simplify right side
    2,058x = 3,199,355.75
  5. Step 5: Solve for x
    x = 3,199,355.75/2,058
  6. Step 6: Final answer
    x = 1,554.59

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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.