Home / 6,420.12-9,629.15-2,036.58

Finding the Fourth Proportional to 6,420.12, 9,629.15 and 2,036.58

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Solution

The fourth proportional to 6,420.12, 9,629.15 and 2,036.58 is: 3,054.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.12 : 9,629.15 = 2,036.58 : x
  2. Step 2: Convert to fraction form
    6,420.12/9,629.15 = 2,036.58/x
  3. Step 3: Cross multiply
    6,420.12x = 9,629.15 × 2,036.58
  4. Step 4: Simplify right side
    6,420.12x = 19,610,524.12
  5. Step 5: Solve for x
    x = 19,610,524.12/6,420.12
  6. Step 6: Final answer
    x = 3,054.54

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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.