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Finding the Fourth Proportional to 2,804.84, 3,870.55 and 1,608.99

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Solution

The fourth proportional to 2,804.84, 3,870.55 and 1,608.99 is: 2,220.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.84 : 3,870.55 = 1,608.99 : x
  2. Step 2: Convert to fraction form
    2,804.84/3,870.55 = 1,608.99/x
  3. Step 3: Cross multiply
    2,804.84x = 3,870.55 × 1,608.99
  4. Step 4: Simplify right side
    2,804.84x = 6,227,676.24
  5. Step 5: Solve for x
    x = 6,227,676.24/2,804.84
  6. Step 6: Final answer
    x = 2,220.33

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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.