Home / 3,990,519-5,506,916.83-2,179,683

Finding the Fourth Proportional to 3,990,519, 5,506,916.83 and 2,179,683

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Solution

The fourth proportional to 3,990,519, 5,506,916.83 and 2,179,683 is: 3,007,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,519 : 5,506,916.83 = 2,179,683 : x
  2. Step 2: Convert to fraction form
    3,990,519/5,506,916.83 = 2,179,683/x
  3. Step 3: Cross multiply
    3,990,519x = 5,506,916.83 × 2,179,683
  4. Step 4: Simplify right side
    3,990,519x = 12,003,332,991,315.68
  5. Step 5: Solve for x
    x = 12,003,332,991,315.68/3,990,519
  6. Step 6: Final answer
    x = 3,007,962.87

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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.