Home / 2,145,800-2,961,098.16-1,286,193.44

Finding the Fourth Proportional to 2,145,800, 2,961,098.16 and 1,286,193.44

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Solution

The fourth proportional to 2,145,800, 2,961,098.16 and 1,286,193.44 is: 1,774,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,800 : 2,961,098.16 = 1,286,193.44 : x
  2. Step 2: Convert to fraction form
    2,145,800/2,961,098.16 = 1,286,193.44/x
  3. Step 3: Cross multiply
    2,145,800x = 2,961,098.16 × 1,286,193.44
  4. Step 4: Simplify right side
    2,145,800x = 3,808,545,028,588.07
  5. Step 5: Solve for x
    x = 3,808,545,028,588.07/2,145,800
  6. Step 6: Final answer
    x = 1,774,883.51

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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.