Home / 1,963.66-2,709.70-1,177.55

Finding the Fourth Proportional to 1,963.66, 2,709.70 and 1,177.55

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Solution

The fourth proportional to 1,963.66, 2,709.70 and 1,177.55 is: 1,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.66 : 2,709.70 = 1,177.55 : x
  2. Step 2: Convert to fraction form
    1,963.66/2,709.70 = 1,177.55/x
  3. Step 3: Cross multiply
    1,963.66x = 2,709.70 × 1,177.55
  4. Step 4: Simplify right side
    1,963.66x = 3,190,811.07
  5. Step 5: Solve for x
    x = 3,190,811.07/1,963.66
  6. Step 6: Final answer
    x = 1,624.93

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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.