Home / 3,697,902.11-5,103,611.85-2,128,001.67

Finding the Fourth Proportional to 3,697,902.11, 5,103,611.85 and 2,128,001.67

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Solution

The fourth proportional to 3,697,902.11, 5,103,611.85 and 2,128,001.67 is: 2,936,934.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,697,902.11 : 5,103,611.85 = 2,128,001.67 : x
  2. Step 2: Convert to fraction form
    3,697,902.11/5,103,611.85 = 2,128,001.67/x
  3. Step 3: Cross multiply
    3,697,902.11x = 5,103,611.85 × 2,128,001.67
  4. Step 4: Simplify right side
    3,697,902.11x = 10,860,494,539,831.79
  5. Step 5: Solve for x
    x = 10,860,494,539,831.79/3,697,902.11
  6. Step 6: Final answer
    x = 2,936,934.03

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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.