Home / 2,021,122.80-3,031,684.20-1,855,785.60

Finding the Fourth Proportional to 2,021,122.80, 3,031,684.20 and 1,855,785.60

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Solution

The fourth proportional to 2,021,122.80, 3,031,684.20 and 1,855,785.60 is: 2,783,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021,122.80 : 3,031,684.20 = 1,855,785.60 : x
  2. Step 2: Convert to fraction form
    2,021,122.80/3,031,684.20 = 1,855,785.60/x
  3. Step 3: Cross multiply
    2,021,122.80x = 3,031,684.20 × 1,855,785.60
  4. Step 4: Simplify right side
    2,021,122.80x = 5,626,155,882,107.52
  5. Step 5: Solve for x
    x = 5,626,155,882,107.52/2,021,122.80
  6. Step 6: Final answer
    x = 2,783,678.40

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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.