Home / 3,879,820.28-5,353,749.65-2,389,436.07

Finding the Fourth Proportional to 3,879,820.28, 5,353,749.65 and 2,389,436.07

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Solution

The fourth proportional to 3,879,820.28, 5,353,749.65 and 2,389,436.07 is: 3,297,173.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879,820.28 : 5,353,749.65 = 2,389,436.07 : x
  2. Step 2: Convert to fraction form
    3,879,820.28/5,353,749.65 = 2,389,436.07/x
  3. Step 3: Cross multiply
    3,879,820.28x = 5,353,749.65 × 2,389,436.07
  4. Step 4: Simplify right side
    3,879,820.28x = 12,792,442,523,459.88
  5. Step 5: Solve for x
    x = 12,792,442,523,459.88/3,879,820.28
  6. Step 6: Final answer
    x = 3,297,173.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.