Home / 3,915,660.45-5,879,256.36-2,189,911.43

Finding the Fourth Proportional to 3,915,660.45, 5,879,256.36 and 2,189,911.43

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Solution

The fourth proportional to 3,915,660.45, 5,879,256.36 and 2,189,911.43 is: 3,288,091.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915,660.45 : 5,879,256.36 = 2,189,911.43 : x
  2. Step 2: Convert to fraction form
    3,915,660.45/5,879,256.36 = 2,189,911.43/x
  3. Step 3: Cross multiply
    3,915,660.45x = 5,879,256.36 × 2,189,911.43
  4. Step 4: Simplify right side
    3,915,660.45x = 12,875,050,688,397.60
  5. Step 5: Solve for x
    x = 12,875,050,688,397.60/3,915,660.45
  6. Step 6: Final answer
    x = 3,288,091.72

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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.