Home / 1,817.37-2,508.84-1,219.64

Finding the Fourth Proportional to 1,817.37, 2,508.84 and 1,219.64

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Solution

The fourth proportional to 1,817.37, 2,508.84 and 1,219.64 is: 1,683.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.37 : 2,508.84 = 1,219.64 : x
  2. Step 2: Convert to fraction form
    1,817.37/2,508.84 = 1,219.64/x
  3. Step 3: Cross multiply
    1,817.37x = 2,508.84 × 1,219.64
  4. Step 4: Simplify right side
    1,817.37x = 3,059,869.07
  5. Step 5: Solve for x
    x = 3,059,869.07/1,817.37
  6. Step 6: Final answer
    x = 1,683.68

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1.5x scale

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.