Home / 3,689,676.93-5,091,880.79-2,140,821.66

Finding the Fourth Proportional to 3,689,676.93, 5,091,880.79 and 2,140,821.66

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Solution

The fourth proportional to 3,689,676.93, 5,091,880.79 and 2,140,821.66 is: 2,954,407.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689,676.93 : 5,091,880.79 = 2,140,821.66 : x
  2. Step 2: Convert to fraction form
    3,689,676.93/5,091,880.79 = 2,140,821.66/x
  3. Step 3: Cross multiply
    3,689,676.93x = 5,091,880.79 × 2,140,821.66
  4. Step 4: Simplify right side
    3,689,676.93x = 10,900,808,685,369.91
  5. Step 5: Solve for x
    x = 10,900,808,685,369.91/3,689,676.93
  6. Step 6: Final answer
    x = 2,954,407.36

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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.