Home / 1,868.12-2,804.64-1,088.84

Finding the Fourth Proportional to 1,868.12, 2,804.64 and 1,088.84

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Solution

The fourth proportional to 1,868.12, 2,804.64 and 1,088.84 is: 1,634.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.12 : 2,804.64 = 1,088.84 : x
  2. Step 2: Convert to fraction form
    1,868.12/2,804.64 = 1,088.84/x
  3. Step 3: Cross multiply
    1,868.12x = 2,804.64 × 1,088.84
  4. Step 4: Simplify right side
    1,868.12x = 3,053,804.22
  5. Step 5: Solve for x
    x = 3,053,804.22/1,868.12
  6. Step 6: Final answer
    x = 1,634.69

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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.