Home / 2,126,122.10-3,189,183.15-1,860,401.60

Finding the Fourth Proportional to 2,126,122.10, 3,189,183.15 and 1,860,401.60

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Solution

The fourth proportional to 2,126,122.10, 3,189,183.15 and 1,860,401.60 is: 2,790,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,122.10 : 3,189,183.15 = 1,860,401.60 : x
  2. Step 2: Convert to fraction form
    2,126,122.10/3,189,183.15 = 1,860,401.60/x
  3. Step 3: Cross multiply
    2,126,122.10x = 3,189,183.15 × 1,860,401.60
  4. Step 4: Simplify right side
    2,126,122.10x = 5,933,161,434,953.04
  5. Step 5: Solve for x
    x = 5,933,161,434,953.04/2,126,122.10
  6. Step 6: Final answer
    x = 2,790,602.40

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Similar ratio
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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.