Home / 1,709.80-2,560.38-1,619.08

Finding the Fourth Proportional to 1,709.80, 2,560.38 and 1,619.08

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Solution

The fourth proportional to 1,709.80, 2,560.38 and 1,619.08 is: 2,424.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.80 : 2,560.38 = 1,619.08 : x
  2. Step 2: Convert to fraction form
    1,709.80/2,560.38 = 1,619.08/x
  3. Step 3: Cross multiply
    1,709.80x = 2,560.38 × 1,619.08
  4. Step 4: Simplify right side
    1,709.80x = 4,145,460.05
  5. Step 5: Solve for x
    x = 4,145,460.05/1,709.80
  6. Step 6: Final answer
    x = 2,424.53

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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.