Home / 3,870,766.81-5,341,355.61-2,151,782.65

Finding the Fourth Proportional to 3,870,766.81, 5,341,355.61 and 2,151,782.65

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Solution

The fourth proportional to 3,870,766.81, 5,341,355.61 and 2,151,782.65 is: 2,969,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,766.81 : 5,341,355.61 = 2,151,782.65 : x
  2. Step 2: Convert to fraction form
    3,870,766.81/5,341,355.61 = 2,151,782.65/x
  3. Step 3: Cross multiply
    3,870,766.81x = 5,341,355.61 × 2,151,782.65
  4. Step 4: Simplify right side
    3,870,766.81x = 11,493,436,329,078.17
  5. Step 5: Solve for x
    x = 11,493,436,329,078.17/3,870,766.81
  6. Step 6: Final answer
    x = 2,969,291.85

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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.