Home / 2,419.39-3,629.63-1,323.19

Finding the Fourth Proportional to 2,419.39, 3,629.63 and 1,323.19

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Solution

The fourth proportional to 2,419.39, 3,629.63 and 1,323.19 is: 1,985.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.39 : 3,629.63 = 1,323.19 : x
  2. Step 2: Convert to fraction form
    2,419.39/3,629.63 = 1,323.19/x
  3. Step 3: Cross multiply
    2,419.39x = 3,629.63 × 1,323.19
  4. Step 4: Simplify right side
    2,419.39x = 4,802,690.12
  5. Step 5: Solve for x
    x = 4,802,690.12/2,419.39
  6. Step 6: Final answer
    x = 1,985.08

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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.