Home / 3,870,640.53-5,341,666.23-2,151,789.75

Finding the Fourth Proportional to 3,870,640.53, 5,341,666.23 and 2,151,789.75

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Solution

The fourth proportional to 3,870,640.53, 5,341,666.23 and 2,151,789.75 is: 2,969,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,640.53 : 5,341,666.23 = 2,151,789.75 : x
  2. Step 2: Convert to fraction form
    3,870,640.53/5,341,666.23 = 2,151,789.75/x
  3. Step 3: Cross multiply
    3,870,640.53x = 5,341,666.23 × 2,151,789.75
  4. Step 4: Simplify right side
    3,870,640.53x = 11,494,142,641,635.14
  5. Step 5: Solve for x
    x = 11,494,142,641,635.14/3,870,640.53
  6. Step 6: Final answer
    x = 2,969,571.20

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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.