Home / 3,940.56-5,913-1,477.08

Finding the Fourth Proportional to 3,940.56, 5,913 and 1,477.08

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Solution

The fourth proportional to 3,940.56, 5,913 and 1,477.08 is: 2,216.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.56 : 5,913 = 1,477.08 : x
  2. Step 2: Convert to fraction form
    3,940.56/5,913 = 1,477.08/x
  3. Step 3: Cross multiply
    3,940.56x = 5,913 × 1,477.08
  4. Step 4: Simplify right side
    3,940.56x = 8,733,974.04
  5. Step 5: Solve for x
    x = 8,733,974.04/3,940.56
  6. Step 6: Final answer
    x = 2,216.43

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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.