Home / 1,946.36-2,919.58-559.64

Finding the Fourth Proportional to 1,946.36, 2,919.58 and 559.64

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Solution

The fourth proportional to 1,946.36, 2,919.58 and 559.64 is: 839.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.36 : 2,919.58 = 559.64 : x
  2. Step 2: Convert to fraction form
    1,946.36/2,919.58 = 559.64/x
  3. Step 3: Cross multiply
    1,946.36x = 2,919.58 × 559.64
  4. Step 4: Simplify right side
    1,946.36x = 1,633,919.65
  5. Step 5: Solve for x
    x = 1,633,919.65/1,946.36
  6. Step 6: Final answer
    x = 839.47

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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.