Home / 1,618.82-2,430.26-1,376.88

Finding the Fourth Proportional to 1,618.82, 2,430.26 and 1,376.88

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Solution

The fourth proportional to 1,618.82, 2,430.26 and 1,376.88 is: 2,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.82 : 2,430.26 = 1,376.88 : x
  2. Step 2: Convert to fraction form
    1,618.82/2,430.26 = 1,376.88/x
  3. Step 3: Cross multiply
    1,618.82x = 2,430.26 × 1,376.88
  4. Step 4: Simplify right side
    1,618.82x = 3,346,164.24
  5. Step 5: Solve for x
    x = 3,346,164.24/1,618.82
  6. Step 6: Final answer
    x = 2,067.05

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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.