Home / 1,806.74-2,495.35-1,216.25

Finding the Fourth Proportional to 1,806.74, 2,495.35 and 1,216.25

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Solution

The fourth proportional to 1,806.74, 2,495.35 and 1,216.25 is: 1,679.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,806.74 : 2,495.35 = 1,216.25 : x
  2. Step 2: Convert to fraction form
    1,806.74/2,495.35 = 1,216.25/x
  3. Step 3: Cross multiply
    1,806.74x = 2,495.35 × 1,216.25
  4. Step 4: Simplify right side
    1,806.74x = 3,034,956.96
  5. Step 5: Solve for x
    x = 3,034,956.96/1,806.74
  6. Step 6: Final answer
    x = 1,679.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.