Home / 4,919.83-7,377.56-1,409.03

Finding the Fourth Proportional to 4,919.83, 7,377.56 and 1,409.03

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Solution

The fourth proportional to 4,919.83, 7,377.56 and 1,409.03 is: 2,112.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.83 : 7,377.56 = 1,409.03 : x
  2. Step 2: Convert to fraction form
    4,919.83/7,377.56 = 1,409.03/x
  3. Step 3: Cross multiply
    4,919.83x = 7,377.56 × 1,409.03
  4. Step 4: Simplify right side
    4,919.83x = 10,395,221.81
  5. Step 5: Solve for x
    x = 10,395,221.81/4,919.83
  6. Step 6: Final answer
    x = 2,112.93

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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.