Home / 1,912.51-2,861.52-1,132.93

Finding the Fourth Proportional to 1,912.51, 2,861.52 and 1,132.93

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Solution

The fourth proportional to 1,912.51, 2,861.52 and 1,132.93 is: 1,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.51 : 2,861.52 = 1,132.93 : x
  2. Step 2: Convert to fraction form
    1,912.51/2,861.52 = 1,132.93/x
  3. Step 3: Cross multiply
    1,912.51x = 2,861.52 × 1,132.93
  4. Step 4: Simplify right side
    1,912.51x = 3,241,901.85
  5. Step 5: Solve for x
    x = 3,241,901.85/1,912.51
  6. Step 6: Final answer
    x = 1,695.10

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Why These Related Problems?

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