Home / 2,175.58-3,002.32-1,291.32

Finding the Fourth Proportional to 2,175.58, 3,002.32 and 1,291.32

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Solution

The fourth proportional to 2,175.58, 3,002.32 and 1,291.32 is: 1,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.58 : 3,002.32 = 1,291.32 : x
  2. Step 2: Convert to fraction form
    2,175.58/3,002.32 = 1,291.32/x
  3. Step 3: Cross multiply
    2,175.58x = 3,002.32 × 1,291.32
  4. Step 4: Simplify right side
    2,175.58x = 3,876,955.86
  5. Step 5: Solve for x
    x = 3,876,955.86/2,175.58
  6. Step 6: Final answer
    x = 1,782.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.