Home / 3,878,611.72-5,809,986.04-3,161,509

Finding the Fourth Proportional to 3,878,611.72, 5,809,986.04 and 3,161,509

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Solution

The fourth proportional to 3,878,611.72, 5,809,986.04 and 3,161,509 is: 4,735,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,611.72 : 5,809,986.04 = 3,161,509 : x
  2. Step 2: Convert to fraction form
    3,878,611.72/5,809,986.04 = 3,161,509/x
  3. Step 3: Cross multiply
    3,878,611.72x = 5,809,986.04 × 3,161,509
  4. Step 4: Simplify right side
    3,878,611.72x = 18,368,323,155,334.36
  5. Step 5: Solve for x
    x = 18,368,323,155,334.36/3,878,611.72
  6. Step 6: Final answer
    x = 4,735,798.39

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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.