Home / 4,291.84-6,428.40-2,556.64

Finding the Fourth Proportional to 4,291.84, 6,428.40 and 2,556.64

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Solution

The fourth proportional to 4,291.84, 6,428.40 and 2,556.64 is: 3,829.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.84 : 6,428.40 = 2,556.64 : x
  2. Step 2: Convert to fraction form
    4,291.84/6,428.40 = 2,556.64/x
  3. Step 3: Cross multiply
    4,291.84x = 6,428.40 × 2,556.64
  4. Step 4: Simplify right side
    4,291.84x = 16,435,104.58
  5. Step 5: Solve for x
    x = 16,435,104.58/4,291.84
  6. Step 6: Final answer
    x = 3,829.38

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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.