Home / 3,909,884.72-5,395,588.81-2,191,038.80

Finding the Fourth Proportional to 3,909,884.72, 5,395,588.81 and 2,191,038.80

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Solution

The fourth proportional to 3,909,884.72, 5,395,588.81 and 2,191,038.80 is: 3,023,604.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909,884.72 : 5,395,588.81 = 2,191,038.80 : x
  2. Step 2: Convert to fraction form
    3,909,884.72/5,395,588.81 = 2,191,038.80/x
  3. Step 3: Cross multiply
    3,909,884.72x = 5,395,588.81 × 2,191,038.80
  4. Step 4: Simplify right side
    3,909,884.72x = 11,821,944,399,100.29
  5. Step 5: Solve for x
    x = 11,821,944,399,100.29/3,909,884.72
  6. Step 6: Final answer
    x = 3,023,604.34

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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.