Home / 1,936.84-2,672.70-1,151.32

Finding the Fourth Proportional to 1,936.84, 2,672.70 and 1,151.32

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Solution

The fourth proportional to 1,936.84, 2,672.70 and 1,151.32 is: 1,588.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.84 : 2,672.70 = 1,151.32 : x
  2. Step 2: Convert to fraction form
    1,936.84/2,672.70 = 1,151.32/x
  3. Step 3: Cross multiply
    1,936.84x = 2,672.70 × 1,151.32
  4. Step 4: Simplify right side
    1,936.84x = 3,077,132.96
  5. Step 5: Solve for x
    x = 3,077,132.96/1,936.84
  6. Step 6: Final answer
    x = 1,588.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.