Home / 1,369.26-2,047.74-1,216.14

Finding the Fourth Proportional to 1,369.26, 2,047.74 and 1,216.14

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Solution

The fourth proportional to 1,369.26, 2,047.74 and 1,216.14 is: 1,818.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369.26 : 2,047.74 = 1,216.14 : x
  2. Step 2: Convert to fraction form
    1,369.26/2,047.74 = 1,216.14/x
  3. Step 3: Cross multiply
    1,369.26x = 2,047.74 × 1,216.14
  4. Step 4: Simplify right side
    1,369.26x = 2,490,338.52
  5. Step 5: Solve for x
    x = 2,490,338.52/1,369.26
  6. Step 6: Final answer
    x = 1,818.75

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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.