Home / 2,419.32-3,629.30-1,186.77

Finding the Fourth Proportional to 2,419.32, 3,629.30 and 1,186.77

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Solution

The fourth proportional to 2,419.32, 3,629.30 and 1,186.77 is: 1,780.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.32 : 3,629.30 = 1,186.77 : x
  2. Step 2: Convert to fraction form
    2,419.32/3,629.30 = 1,186.77/x
  3. Step 3: Cross multiply
    2,419.32x = 3,629.30 × 1,186.77
  4. Step 4: Simplify right side
    2,419.32x = 4,307,144.36
  5. Step 5: Solve for x
    x = 4,307,144.36/2,419.32
  6. Step 6: Final answer
    x = 1,780.31

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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.