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Finding the Fourth Proportional to 2,039.06, 3,058.79 and 652.05

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Solution

The fourth proportional to 2,039.06, 3,058.79 and 652.05 is: 978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.06 : 3,058.79 = 652.05 : x
  2. Step 2: Convert to fraction form
    2,039.06/3,058.79 = 652.05/x
  3. Step 3: Cross multiply
    2,039.06x = 3,058.79 × 652.05
  4. Step 4: Simplify right side
    2,039.06x = 1,994,467.91
  5. Step 5: Solve for x
    x = 1,994,467.91/2,039.06
  6. Step 6: Final answer
    x = 978.13

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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.