Home / 3,957,891.21-5,461,900.34-2,147,055.21

Finding the Fourth Proportional to 3,957,891.21, 5,461,900.34 and 2,147,055.21

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Solution

The fourth proportional to 3,957,891.21, 5,461,900.34 and 2,147,055.21 is: 2,962,941.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957,891.21 : 5,461,900.34 = 2,147,055.21 : x
  2. Step 2: Convert to fraction form
    3,957,891.21/5,461,900.34 = 2,147,055.21/x
  3. Step 3: Cross multiply
    3,957,891.21x = 5,461,900.34 × 2,147,055.21
  4. Step 4: Simplify right side
    3,957,891.21x = 11,727,001,570,762.49
  5. Step 5: Solve for x
    x = 11,727,001,570,762.49/3,957,891.21
  6. Step 6: Final answer
    x = 2,962,941.87

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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.