Home / 2,191,107.40-3,286,661.10-2,159,614.60

Finding the Fourth Proportional to 2,191,107.40, 3,286,661.10 and 2,159,614.60

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Solution

The fourth proportional to 2,191,107.40, 3,286,661.10 and 2,159,614.60 is: 3,239,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,107.40 : 3,286,661.10 = 2,159,614.60 : x
  2. Step 2: Convert to fraction form
    2,191,107.40/3,286,661.10 = 2,159,614.60/x
  3. Step 3: Cross multiply
    2,191,107.40x = 3,286,661.10 × 2,159,614.60
  4. Step 4: Simplify right side
    2,191,107.40x = 7,097,921,296,812.06
  5. Step 5: Solve for x
    x = 7,097,921,296,812.06/2,191,107.40
  6. Step 6: Final answer
    x = 3,239,421.90

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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.