Home / 2,189,874.88-3,264,570.05-2,155,364.02

Finding the Fourth Proportional to 2,189,874.88, 3,264,570.05 and 2,155,364.02

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Solution

The fourth proportional to 2,189,874.88, 3,264,570.05 and 2,155,364.02 is: 3,213,122.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,874.88 : 3,264,570.05 = 2,155,364.02 : x
  2. Step 2: Convert to fraction form
    2,189,874.88/3,264,570.05 = 2,155,364.02/x
  3. Step 3: Cross multiply
    2,189,874.88x = 3,264,570.05 × 2,155,364.02
  4. Step 4: Simplify right side
    2,189,874.88x = 7,036,336,826,539.60
  5. Step 5: Solve for x
    x = 7,036,336,826,539.60/2,189,874.88
  6. Step 6: Final answer
    x = 3,213,122.76

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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.