Home / 6,420.38-9,629.52-2,036.84

Finding the Fourth Proportional to 6,420.38, 9,629.52 and 2,036.84

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Solution

The fourth proportional to 6,420.38, 9,629.52 and 2,036.84 is: 3,054.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.38 : 9,629.52 = 2,036.84 : x
  2. Step 2: Convert to fraction form
    6,420.38/9,629.52 = 2,036.84/x
  3. Step 3: Cross multiply
    6,420.38x = 9,629.52 × 2,036.84
  4. Step 4: Simplify right side
    6,420.38x = 19,613,791.52
  5. Step 5: Solve for x
    x = 19,613,791.52/6,420.38
  6. Step 6: Final answer
    x = 3,054.93

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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.