Home / 2,783.13-3,838.55-1,788.50

Finding the Fourth Proportional to 2,783.13, 3,838.55 and 1,788.50

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Solution

The fourth proportional to 2,783.13, 3,838.55 and 1,788.50 is: 2,466.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.13 : 3,838.55 = 1,788.50 : x
  2. Step 2: Convert to fraction form
    2,783.13/3,838.55 = 1,788.50/x
  3. Step 3: Cross multiply
    2,783.13x = 3,838.55 × 1,788.50
  4. Step 4: Simplify right side
    2,783.13x = 6,865,218.54
  5. Step 5: Solve for x
    x = 6,865,218.54/2,783.13
  6. Step 6: Final answer
    x = 2,466.73

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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.