Home / 1,619.02-2,236.40-1,305.50

Finding the Fourth Proportional to 1,619.02, 2,236.40 and 1,305.50

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Solution

The fourth proportional to 1,619.02, 2,236.40 and 1,305.50 is: 1,803.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.02 : 2,236.40 = 1,305.50 : x
  2. Step 2: Convert to fraction form
    1,619.02/2,236.40 = 1,305.50/x
  3. Step 3: Cross multiply
    1,619.02x = 2,236.40 × 1,305.50
  4. Step 4: Simplify right side
    1,619.02x = 2,919,620.20
  5. Step 5: Solve for x
    x = 2,919,620.20/1,619.02
  6. Step 6: Final answer
    x = 1,803.33

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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.