Home / 1,935.77-2,672.28-1,190.36

Finding the Fourth Proportional to 1,935.77, 2,672.28 and 1,190.36

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Solution

The fourth proportional to 1,935.77, 2,672.28 and 1,190.36 is: 1,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.77 : 2,672.28 = 1,190.36 : x
  2. Step 2: Convert to fraction form
    1,935.77/2,672.28 = 1,190.36/x
  3. Step 3: Cross multiply
    1,935.77x = 2,672.28 × 1,190.36
  4. Step 4: Simplify right side
    1,935.77x = 3,180,961.86
  5. Step 5: Solve for x
    x = 3,180,961.86/1,935.77
  6. Step 6: Final answer
    x = 1,643.26

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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.