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Finding the Fourth Proportional to 6,419.88, 9,629.88 and 2,037

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Solution

The fourth proportional to 6,419.88, 9,629.88 and 2,037 is: 3,055.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.88 : 9,629.88 = 2,037 : x
  2. Step 2: Convert to fraction form
    6,419.88/9,629.88 = 2,037/x
  3. Step 3: Cross multiply
    6,419.88x = 9,629.88 × 2,037
  4. Step 4: Simplify right side
    6,419.88x = 19,616,065.56
  5. Step 5: Solve for x
    x = 19,616,065.56/6,419.88
  6. Step 6: Final answer
    x = 3,055.52

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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.