Home / 1,804.83-2,491.65-1,218.48

Finding the Fourth Proportional to 1,804.83, 2,491.65 and 1,218.48

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Solution

The fourth proportional to 1,804.83, 2,491.65 and 1,218.48 is: 1,682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,804.83 : 2,491.65 = 1,218.48 : x
  2. Step 2: Convert to fraction form
    1,804.83/2,491.65 = 1,218.48/x
  3. Step 3: Cross multiply
    1,804.83x = 2,491.65 × 1,218.48
  4. Step 4: Simplify right side
    1,804.83x = 3,036,025.69
  5. Step 5: Solve for x
    x = 3,036,025.69/1,804.83
  6. Step 6: Final answer
    x = 1,682.17

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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.