Home / 3,970.36-5,476.57-2,551.60

Finding the Fourth Proportional to 3,970.36, 5,476.57 and 2,551.60

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Solution

The fourth proportional to 3,970.36, 5,476.57 and 2,551.60 is: 3,519.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.36 : 5,476.57 = 2,551.60 : x
  2. Step 2: Convert to fraction form
    3,970.36/5,476.57 = 2,551.60/x
  3. Step 3: Cross multiply
    3,970.36x = 5,476.57 × 2,551.60
  4. Step 4: Simplify right side
    3,970.36x = 13,974,016.01
  5. Step 5: Solve for x
    x = 13,974,016.01/3,970.36
  6. Step 6: Final answer
    x = 3,519.59

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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.