Home / 2,175.29-3,001.65-1,231.01

Finding the Fourth Proportional to 2,175.29, 3,001.65 and 1,231.01

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Solution

The fourth proportional to 2,175.29, 3,001.65 and 1,231.01 is: 1,698.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.29 : 3,001.65 = 1,231.01 : x
  2. Step 2: Convert to fraction form
    2,175.29/3,001.65 = 1,231.01/x
  3. Step 3: Cross multiply
    2,175.29x = 3,001.65 × 1,231.01
  4. Step 4: Simplify right side
    2,175.29x = 3,695,061.17
  5. Step 5: Solve for x
    x = 3,695,061.17/2,175.29
  6. Step 6: Final answer
    x = 1,698.65

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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.