Home / 1,956.36-2,919.84-1,691.65

Finding the Fourth Proportional to 1,956.36, 2,919.84 and 1,691.65

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Solution

The fourth proportional to 1,956.36, 2,919.84 and 1,691.65 is: 2,524.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956.36 : 2,919.84 = 1,691.65 : x
  2. Step 2: Convert to fraction form
    1,956.36/2,919.84 = 1,691.65/x
  3. Step 3: Cross multiply
    1,956.36x = 2,919.84 × 1,691.65
  4. Step 4: Simplify right side
    1,956.36x = 4,939,332.74
  5. Step 5: Solve for x
    x = 4,939,332.74/1,956.36
  6. Step 6: Final answer
    x = 2,524.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.