Home / 2,788.48-3,846.40-2,045.44

Finding the Fourth Proportional to 2,788.48, 3,846.40 and 2,045.44

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Solution

The fourth proportional to 2,788.48, 3,846.40 and 2,045.44 is: 2,821.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.48 : 3,846.40 = 2,045.44 : x
  2. Step 2: Convert to fraction form
    2,788.48/3,846.40 = 2,045.44/x
  3. Step 3: Cross multiply
    2,788.48x = 3,846.40 × 2,045.44
  4. Step 4: Simplify right side
    2,788.48x = 7,867,580.42
  5. Step 5: Solve for x
    x = 7,867,580.42/2,788.48
  6. Step 6: Final answer
    x = 2,821.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.