Home / 1,814.71-2,719.84-1,291.88

Finding the Fourth Proportional to 1,814.71, 2,719.84 and 1,291.88

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Solution

The fourth proportional to 1,814.71, 2,719.84 and 1,291.88 is: 1,936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.71 : 2,719.84 = 1,291.88 : x
  2. Step 2: Convert to fraction form
    1,814.71/2,719.84 = 1,291.88/x
  3. Step 3: Cross multiply
    1,814.71x = 2,719.84 × 1,291.88
  4. Step 4: Simplify right side
    1,814.71x = 3,513,690.07
  5. Step 5: Solve for x
    x = 3,513,690.07/1,814.71
  6. Step 6: Final answer
    x = 1,936.23

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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.