Home / 1,619.98-2,231.49-1,270.06

Finding the Fourth Proportional to 1,619.98, 2,231.49 and 1,270.06

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Solution

The fourth proportional to 1,619.98, 2,231.49 and 1,270.06 is: 1,749.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.98 : 2,231.49 = 1,270.06 : x
  2. Step 2: Convert to fraction form
    1,619.98/2,231.49 = 1,270.06/x
  3. Step 3: Cross multiply
    1,619.98x = 2,231.49 × 1,270.06
  4. Step 4: Simplify right side
    1,619.98x = 2,834,126.19
  5. Step 5: Solve for x
    x = 2,834,126.19/1,619.98
  6. Step 6: Final answer
    x = 1,749.48

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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.