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Finding the Fourth Proportional to 1,768.14, 2,647.01 and 1,549.20

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Solution

The fourth proportional to 1,768.14, 2,647.01 and 1,549.20 is: 2,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768.14 : 2,647.01 = 1,549.20 : x
  2. Step 2: Convert to fraction form
    1,768.14/2,647.01 = 1,549.20/x
  3. Step 3: Cross multiply
    1,768.14x = 2,647.01 × 1,549.20
  4. Step 4: Simplify right side
    1,768.14x = 4,100,740.15
  5. Step 5: Solve for x
    x = 4,100,740.15/1,768.14
  6. Step 6: Final answer
    x = 2,319.24

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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.