Home / 3,278,855.28-4,920,149.34-2,157,452.40

Finding the Fourth Proportional to 3,278,855.28, 4,920,149.34 and 2,157,452.40

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Solution

The fourth proportional to 3,278,855.28, 4,920,149.34 and 2,157,452.40 is: 3,237,406.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278,855.28 : 4,920,149.34 = 2,157,452.40 : x
  2. Step 2: Convert to fraction form
    3,278,855.28/4,920,149.34 = 2,157,452.40/x
  3. Step 3: Cross multiply
    3,278,855.28x = 4,920,149.34 × 2,157,452.40
  4. Step 4: Simplify right side
    3,278,855.28x = 10,614,988,001,941.42
  5. Step 5: Solve for x
    x = 10,614,988,001,941.42/3,278,855.28
  6. Step 6: Final answer
    x = 3,237,406.68

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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.