Home / 4,685.40-7,028.24-2,618.60

Finding the Fourth Proportional to 4,685.40, 7,028.24 and 2,618.60

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Solution

The fourth proportional to 4,685.40, 7,028.24 and 2,618.60 is: 3,927.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.40 : 7,028.24 = 2,618.60 : x
  2. Step 2: Convert to fraction form
    4,685.40/7,028.24 = 2,618.60/x
  3. Step 3: Cross multiply
    4,685.40x = 7,028.24 × 2,618.60
  4. Step 4: Simplify right side
    4,685.40x = 18,404,101.03
  5. Step 5: Solve for x
    x = 18,404,101.03/4,685.40
  6. Step 6: Final answer
    x = 3,927.97

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1.5x scale

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.