Home / 1,816.60-2,722.86-1,267.12

Finding the Fourth Proportional to 1,816.60, 2,722.86 and 1,267.12

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Solution

The fourth proportional to 1,816.60, 2,722.86 and 1,267.12 is: 1,899.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.60 : 2,722.86 = 1,267.12 : x
  2. Step 2: Convert to fraction form
    1,816.60/2,722.86 = 1,267.12/x
  3. Step 3: Cross multiply
    1,816.60x = 2,722.86 × 1,267.12
  4. Step 4: Simplify right side
    1,816.60x = 3,450,190.36
  5. Step 5: Solve for x
    x = 3,450,190.36/1,816.60
  6. Step 6: Final answer
    x = 1,899.26

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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.