Home / 3,120.38-4,682.60-1,477.08

Finding the Fourth Proportional to 3,120.38, 4,682.60 and 1,477.08

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Solution

The fourth proportional to 3,120.38, 4,682.60 and 1,477.08 is: 2,216.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.38 : 4,682.60 = 1,477.08 : x
  2. Step 2: Convert to fraction form
    3,120.38/4,682.60 = 1,477.08/x
  3. Step 3: Cross multiply
    3,120.38x = 4,682.60 × 1,477.08
  4. Step 4: Simplify right side
    3,120.38x = 6,916,567.42
  5. Step 5: Solve for x
    x = 6,916,567.42/3,120.38
  6. Step 6: Final answer
    x = 2,216.58

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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.