Home / 2,839.41-3,918.40-1,660.25

Finding the Fourth Proportional to 2,839.41, 3,918.40 and 1,660.25

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Solution

The fourth proportional to 2,839.41, 3,918.40 and 1,660.25 is: 2,291.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.41 : 3,918.40 = 1,660.25 : x
  2. Step 2: Convert to fraction form
    2,839.41/3,918.40 = 1,660.25/x
  3. Step 3: Cross multiply
    2,839.41x = 3,918.40 × 1,660.25
  4. Step 4: Simplify right side
    2,839.41x = 6,505,529.25
  5. Step 5: Solve for x
    x = 6,505,529.25/2,839.41
  6. Step 6: Final answer
    x = 2,291.16

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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.