Home / 3,929,948.78-5,423,273.75-2,211,065.19

Finding the Fourth Proportional to 3,929,948.78, 5,423,273.75 and 2,211,065.19

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Solution

The fourth proportional to 3,929,948.78, 5,423,273.75 and 2,211,065.19 is: 3,051,238.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,948.78 : 5,423,273.75 = 2,211,065.19 : x
  2. Step 2: Convert to fraction form
    3,929,948.78/5,423,273.75 = 2,211,065.19/x
  3. Step 3: Cross multiply
    3,929,948.78x = 5,423,273.75 × 2,211,065.19
  4. Step 4: Simplify right side
    3,929,948.78x = 11,991,211,809,993.43
  5. Step 5: Solve for x
    x = 11,991,211,809,993.43/3,929,948.78
  6. Step 6: Final answer
    x = 3,051,238.70

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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.