Home / 2,128,193.90-3,192,290.85-2,100,200.30

Finding the Fourth Proportional to 2,128,193.90, 3,192,290.85 and 2,100,200.30

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Solution

The fourth proportional to 2,128,193.90, 3,192,290.85 and 2,100,200.30 is: 3,150,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,193.90 : 3,192,290.85 = 2,100,200.30 : x
  2. Step 2: Convert to fraction form
    2,128,193.90/3,192,290.85 = 2,100,200.30/x
  3. Step 3: Cross multiply
    2,128,193.90x = 3,192,290.85 × 2,100,200.30
  4. Step 4: Simplify right side
    2,128,193.90x = 6,704,450,200,857.26
  5. Step 5: Solve for x
    x = 6,704,450,200,857.26/2,128,193.90
  6. Step 6: Final answer
    x = 3,150,300.45

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Double scale
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1.5x scale

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.