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Finding the Fourth Proportional to 1,720.98, 2,373.84 and 1,327.32

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Solution

The fourth proportional to 1,720.98, 2,373.84 and 1,327.32 is: 1,830.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.98 : 2,373.84 = 1,327.32 : x
  2. Step 2: Convert to fraction form
    1,720.98/2,373.84 = 1,327.32/x
  3. Step 3: Cross multiply
    1,720.98x = 2,373.84 × 1,327.32
  4. Step 4: Simplify right side
    1,720.98x = 3,150,845.31
  5. Step 5: Solve for x
    x = 3,150,845.31/1,720.98
  6. Step 6: Final answer
    x = 1,830.84

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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.