Home / 3,617,221.37-4,991,745.78-1,985,656.50

Finding the Fourth Proportional to 3,617,221.37, 4,991,745.78 and 1,985,656.50

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Solution

The fourth proportional to 3,617,221.37, 4,991,745.78 and 1,985,656.50 is: 2,740,195.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617,221.37 : 4,991,745.78 = 1,985,656.50 : x
  2. Step 2: Convert to fraction form
    3,617,221.37/4,991,745.78 = 1,985,656.50/x
  3. Step 3: Cross multiply
    3,617,221.37x = 4,991,745.78 × 1,985,656.50
  4. Step 4: Simplify right side
    3,617,221.37x = 9,911,892,454,404.57
  5. Step 5: Solve for x
    x = 9,911,892,454,404.57/3,617,221.37
  6. Step 6: Final answer
    x = 2,740,195.15

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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.