Home / 2,111.24-3,167.40-650.41

Finding the Fourth Proportional to 2,111.24, 3,167.40 and 650.41

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Solution

The fourth proportional to 2,111.24, 3,167.40 and 650.41 is: 975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.24 : 3,167.40 = 650.41 : x
  2. Step 2: Convert to fraction form
    2,111.24/3,167.40 = 650.41/x
  3. Step 3: Cross multiply
    2,111.24x = 3,167.40 × 650.41
  4. Step 4: Simplify right side
    2,111.24x = 2,060,108.63
  5. Step 5: Solve for x
    x = 2,060,108.63/2,111.24
  6. Step 6: Final answer
    x = 975.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.