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Finding the Fourth Proportional to 2,757.99, 3,806.78 and 1,624.65

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Solution

The fourth proportional to 2,757.99, 3,806.78 and 1,624.65 is: 2,242.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.99 : 3,806.78 = 1,624.65 : x
  2. Step 2: Convert to fraction form
    2,757.99/3,806.78 = 1,624.65/x
  3. Step 3: Cross multiply
    2,757.99x = 3,806.78 × 1,624.65
  4. Step 4: Simplify right side
    2,757.99x = 6,184,677.00
  5. Step 5: Solve for x
    x = 6,184,677.00/2,757.99
  6. Step 6: Final answer
    x = 2,242.46

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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.