Home / 4,419.84-6,629.75-2,078.39

Finding the Fourth Proportional to 4,419.84, 6,629.75 and 2,078.39

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Solution

The fourth proportional to 4,419.84, 6,629.75 and 2,078.39 is: 3,117.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,419.84 : 6,629.75 = 2,078.39 : x
  2. Step 2: Convert to fraction form
    4,419.84/6,629.75 = 2,078.39/x
  3. Step 3: Cross multiply
    4,419.84x = 6,629.75 × 2,078.39
  4. Step 4: Simplify right side
    4,419.84x = 13,779,178.15
  5. Step 5: Solve for x
    x = 13,779,178.15/4,419.84
  6. Step 6: Final answer
    x = 3,117.58

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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.