Home / 2,189,873.88-3,264,568.56-2,155,363.02

Finding the Fourth Proportional to 2,189,873.88, 3,264,568.56 and 2,155,363.02

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Solution

The fourth proportional to 2,189,873.88, 3,264,568.56 and 2,155,363.02 is: 3,213,121.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,873.88 : 3,264,568.56 = 2,155,363.02 : x
  2. Step 2: Convert to fraction form
    2,189,873.88/3,264,568.56 = 2,155,363.02/x
  3. Step 3: Cross multiply
    2,189,873.88x = 3,264,568.56 × 2,155,363.02
  4. Step 4: Simplify right side
    2,189,873.88x = 7,036,330,350,478.65
  5. Step 5: Solve for x
    x = 7,036,330,350,478.65/2,189,873.88
  6. Step 6: Final answer
    x = 3,213,121.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.