Home / 2,980.26-4,111.29-2,141.10

Finding the Fourth Proportional to 2,980.26, 4,111.29 and 2,141.10

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Solution

The fourth proportional to 2,980.26, 4,111.29 and 2,141.10 is: 2,953.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,980.26 : 4,111.29 = 2,141.10 : x
  2. Step 2: Convert to fraction form
    2,980.26/4,111.29 = 2,141.10/x
  3. Step 3: Cross multiply
    2,980.26x = 4,111.29 × 2,141.10
  4. Step 4: Simplify right side
    2,980.26x = 8,802,683.02
  5. Step 5: Solve for x
    x = 8,802,683.02/2,980.26
  6. Step 6: Final answer
    x = 2,953.66

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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.