Home / 2,839.66-3,918.98-1,644.98

Finding the Fourth Proportional to 2,839.66, 3,918.98 and 1,644.98

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Solution

The fourth proportional to 2,839.66, 3,918.98 and 1,644.98 is: 2,270.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.66 : 3,918.98 = 1,644.98 : x
  2. Step 2: Convert to fraction form
    2,839.66/3,918.98 = 1,644.98/x
  3. Step 3: Cross multiply
    2,839.66x = 3,918.98 × 1,644.98
  4. Step 4: Simplify right side
    2,839.66x = 6,446,628.24
  5. Step 5: Solve for x
    x = 6,446,628.24/2,839.66
  6. Step 6: Final answer
    x = 2,270.21

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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.