Home / 1,955.28-2,698.61-1,169.79

Finding the Fourth Proportional to 1,955.28, 2,698.61 and 1,169.79

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Solution

The fourth proportional to 1,955.28, 2,698.61 and 1,169.79 is: 1,614.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.28 : 2,698.61 = 1,169.79 : x
  2. Step 2: Convert to fraction form
    1,955.28/2,698.61 = 1,169.79/x
  3. Step 3: Cross multiply
    1,955.28x = 2,698.61 × 1,169.79
  4. Step 4: Simplify right side
    1,955.28x = 3,156,801.14
  5. Step 5: Solve for x
    x = 3,156,801.14/1,955.28
  6. Step 6: Final answer
    x = 1,614.50

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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.