Home / 1,216.36-1,826.16-1,119.70

Finding the Fourth Proportional to 1,216.36, 1,826.16 and 1,119.70

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Solution

The fourth proportional to 1,216.36, 1,826.16 and 1,119.70 is: 1,681.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.36 : 1,826.16 = 1,119.70 : x
  2. Step 2: Convert to fraction form
    1,216.36/1,826.16 = 1,119.70/x
  3. Step 3: Cross multiply
    1,216.36x = 1,826.16 × 1,119.70
  4. Step 4: Simplify right side
    1,216.36x = 2,044,751.35
  5. Step 5: Solve for x
    x = 2,044,751.35/1,216.36
  6. Step 6: Final answer
    x = 1,681.04

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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.