Home / 3,898,089.32-5,379,331.79-2,155,832.12

Finding the Fourth Proportional to 3,898,089.32, 5,379,331.79 and 2,155,832.12

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Solution

The fourth proportional to 3,898,089.32, 5,379,331.79 and 2,155,832.12 is: 2,975,030.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898,089.32 : 5,379,331.79 = 2,155,832.12 : x
  2. Step 2: Convert to fraction form
    3,898,089.32/5,379,331.79 = 2,155,832.12/x
  3. Step 3: Cross multiply
    3,898,089.32x = 5,379,331.79 × 2,155,832.12
  4. Step 4: Simplify right side
    3,898,089.32x = 11,596,936,275,857.01
  5. Step 5: Solve for x
    x = 11,596,936,275,857.01/3,898,089.32
  6. Step 6: Final answer
    x = 2,975,030.93

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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.