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Finding the Fourth Proportional to 3,388.77, 4,676.42 and 1,973.02

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Solution

The fourth proportional to 3,388.77, 4,676.42 and 1,973.02 is: 2,722.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.77 : 4,676.42 = 1,973.02 : x
  2. Step 2: Convert to fraction form
    3,388.77/4,676.42 = 1,973.02/x
  3. Step 3: Cross multiply
    3,388.77x = 4,676.42 × 1,973.02
  4. Step 4: Simplify right side
    3,388.77x = 9,226,670.19
  5. Step 5: Solve for x
    x = 9,226,670.19/3,388.77
  6. Step 6: Final answer
    x = 2,722.72

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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.