Home / 2,763.45-3,818.42-2,208.50

Finding the Fourth Proportional to 2,763.45, 3,818.42 and 2,208.50

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Solution

The fourth proportional to 2,763.45, 3,818.42 and 2,208.50 is: 3,051.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.45 : 3,818.42 = 2,208.50 : x
  2. Step 2: Convert to fraction form
    2,763.45/3,818.42 = 2,208.50/x
  3. Step 3: Cross multiply
    2,763.45x = 3,818.42 × 2,208.50
  4. Step 4: Simplify right side
    2,763.45x = 8,432,966.82
  5. Step 5: Solve for x
    x = 8,432,966.82/2,763.45
  6. Step 6: Final answer
    x = 3,051.61

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1.5x scale

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.