Home / 2,106,106.98-3,159,156.63-686,161.38

Finding the Fourth Proportional to 2,106,106.98, 3,159,156.63 and 686,161.38

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Solution

The fourth proportional to 2,106,106.98, 3,159,156.63 and 686,161.38 is: 1,029,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,106.98 : 3,159,156.63 = 686,161.38 : x
  2. Step 2: Convert to fraction form
    2,106,106.98/3,159,156.63 = 686,161.38/x
  3. Step 3: Cross multiply
    2,106,106.98x = 3,159,156.63 × 686,161.38
  4. Step 4: Simplify right side
    2,106,106.98x = 2,167,691,272,876.95
  5. Step 5: Solve for x
    x = 2,167,691,272,876.95/2,106,106.98
  6. Step 6: Final answer
    x = 1,029,240.82

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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.