Home / 1,736.98-2,605.44-438.43

Finding the Fourth Proportional to 1,736.98, 2,605.44 and 438.43

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Solution

The fourth proportional to 1,736.98, 2,605.44 and 438.43 is: 657.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736.98 : 2,605.44 = 438.43 : x
  2. Step 2: Convert to fraction form
    1,736.98/2,605.44 = 438.43/x
  3. Step 3: Cross multiply
    1,736.98x = 2,605.44 × 438.43
  4. Step 4: Simplify right side
    1,736.98x = 1,142,303.06
  5. Step 5: Solve for x
    x = 1,142,303.06/1,736.98
  6. Step 6: Final answer
    x = 657.64

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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.