Home / 1,821.03-2,509.69-1,322.81

Finding the Fourth Proportional to 1,821.03, 2,509.69 and 1,322.81

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Solution

The fourth proportional to 1,821.03, 2,509.69 and 1,322.81 is: 1,823.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.03 : 2,509.69 = 1,322.81 : x
  2. Step 2: Convert to fraction form
    1,821.03/2,509.69 = 1,322.81/x
  3. Step 3: Cross multiply
    1,821.03x = 2,509.69 × 1,322.81
  4. Step 4: Simplify right side
    1,821.03x = 3,319,843.03
  5. Step 5: Solve for x
    x = 3,319,843.03/1,821.03
  6. Step 6: Final answer
    x = 1,823.06

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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.