Home / 3,559.78-5,334.81-3,145.06

Finding the Fourth Proportional to 3,559.78, 5,334.81 and 3,145.06

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Solution

The fourth proportional to 3,559.78, 5,334.81 and 3,145.06 is: 4,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,559.78 : 5,334.81 = 3,145.06 : x
  2. Step 2: Convert to fraction form
    3,559.78/5,334.81 = 3,145.06/x
  3. Step 3: Cross multiply
    3,559.78x = 5,334.81 × 3,145.06
  4. Step 4: Simplify right side
    3,559.78x = 16,778,297.54
  5. Step 5: Solve for x
    x = 16,778,297.54/3,559.78
  6. Step 6: Final answer
    x = 4,713.30

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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.