Home / 2,419.37-3,622.90-1,322.45

Finding the Fourth Proportional to 2,419.37, 3,622.90 and 1,322.45

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Solution

The fourth proportional to 2,419.37, 3,622.90 and 1,322.45 is: 1,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.37 : 3,622.90 = 1,322.45 : x
  2. Step 2: Convert to fraction form
    2,419.37/3,622.90 = 1,322.45/x
  3. Step 3: Cross multiply
    2,419.37x = 3,622.90 × 1,322.45
  4. Step 4: Simplify right side
    2,419.37x = 4,791,112.66
  5. Step 5: Solve for x
    x = 4,791,112.66/2,419.37
  6. Step 6: Final answer
    x = 1,980.32

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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.