Home / 3,878,608.72-5,809,981.56-3,161,506

Finding the Fourth Proportional to 3,878,608.72, 5,809,981.56 and 3,161,506

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Solution

The fourth proportional to 3,878,608.72, 5,809,981.56 and 3,161,506 is: 4,735,793.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,608.72 : 5,809,981.56 = 3,161,506 : x
  2. Step 2: Convert to fraction form
    3,878,608.72/5,809,981.56 = 3,161,506/x
  3. Step 3: Cross multiply
    3,878,608.72x = 5,809,981.56 × 3,161,506
  4. Step 4: Simplify right side
    3,878,608.72x = 18,368,291,561,829.36
  5. Step 5: Solve for x
    x = 18,368,291,561,829.36/3,878,608.72
  6. Step 6: Final answer
    x = 4,735,793.91

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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.