Home / 2,119.23-3,165.95-1,372.76

Finding the Fourth Proportional to 2,119.23, 3,165.95 and 1,372.76

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Solution

The fourth proportional to 2,119.23, 3,165.95 and 1,372.76 is: 2,050.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.23 : 3,165.95 = 1,372.76 : x
  2. Step 2: Convert to fraction form
    2,119.23/3,165.95 = 1,372.76/x
  3. Step 3: Cross multiply
    2,119.23x = 3,165.95 × 1,372.76
  4. Step 4: Simplify right side
    2,119.23x = 4,346,066.83
  5. Step 5: Solve for x
    x = 4,346,066.83/2,119.23
  6. Step 6: Final answer
    x = 2,050.78

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.