Home / 3,112,457.08-4,295,960.85-2,120,665.37

Finding the Fourth Proportional to 3,112,457.08, 4,295,960.85 and 2,120,665.37

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Solution

The fourth proportional to 3,112,457.08, 4,295,960.85 and 2,120,665.37 is: 2,927,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112,457.08 : 4,295,960.85 = 2,120,665.37 : x
  2. Step 2: Convert to fraction form
    3,112,457.08/4,295,960.85 = 2,120,665.37/x
  3. Step 3: Cross multiply
    3,112,457.08x = 4,295,960.85 × 2,120,665.37
  4. Step 4: Simplify right side
    3,112,457.08x = 9,110,295,405,470.76
  5. Step 5: Solve for x
    x = 9,110,295,405,470.76/3,112,457.08
  6. Step 6: Final answer
    x = 2,927,042.90

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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.