Home / 2,100,855.42-3,151,394.88-661,651.38

Finding the Fourth Proportional to 2,100,855.42, 3,151,394.88 and 661,651.38

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Solution

The fourth proportional to 2,100,855.42, 3,151,394.88 and 661,651.38 is: 992,512.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100,855.42 : 3,151,394.88 = 661,651.38 : x
  2. Step 2: Convert to fraction form
    2,100,855.42/3,151,394.88 = 661,651.38/x
  3. Step 3: Cross multiply
    2,100,855.42x = 3,151,394.88 × 661,651.38
  4. Step 4: Simplify right side
    2,100,855.42x = 2,085,124,771,276.93
  5. Step 5: Solve for x
    x = 2,085,124,771,276.93/2,100,855.42
  6. Step 6: Final answer
    x = 992,512.26

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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.