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Finding the Fourth Proportional to 2,786.35, 4,188.18 and 1,752.99

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Solution

The fourth proportional to 2,786.35, 4,188.18 and 1,752.99 is: 2,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.35 : 4,188.18 = 1,752.99 : x
  2. Step 2: Convert to fraction form
    2,786.35/4,188.18 = 1,752.99/x
  3. Step 3: Cross multiply
    2,786.35x = 4,188.18 × 1,752.99
  4. Step 4: Simplify right side
    2,786.35x = 7,341,847.15
  5. Step 5: Solve for x
    x = 7,341,847.15/2,786.35
  6. Step 6: Final answer
    x = 2,634.93

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1.5x scale

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.