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Finding the Fourth Proportional to 1,375.74, 2,058.66 and 1,009.62

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Solution

The fourth proportional to 1,375.74, 2,058.66 and 1,009.62 is: 1,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375.74 : 2,058.66 = 1,009.62 : x
  2. Step 2: Convert to fraction form
    1,375.74/2,058.66 = 1,009.62/x
  3. Step 3: Cross multiply
    1,375.74x = 2,058.66 × 1,009.62
  4. Step 4: Simplify right side
    1,375.74x = 2,078,464.31
  5. Step 5: Solve for x
    x = 2,078,464.31/1,375.74
  6. Step 6: Final answer
    x = 1,510.80

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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.