Home / 2,782,981.20-3,842,356.32-2,137,242.72

Finding the Fourth Proportional to 2,782,981.20, 3,842,356.32 and 2,137,242.72

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Solution

The fourth proportional to 2,782,981.20, 3,842,356.32 and 2,137,242.72 is: 2,950,809.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782,981.20 : 3,842,356.32 = 2,137,242.72 : x
  2. Step 2: Convert to fraction form
    2,782,981.20/3,842,356.32 = 2,137,242.72/x
  3. Step 3: Cross multiply
    2,782,981.20x = 3,842,356.32 × 2,137,242.72
  4. Step 4: Simplify right side
    2,782,981.20x = 8,212,048,072,565.99
  5. Step 5: Solve for x
    x = 8,212,048,072,565.99/2,782,981.20
  6. Step 6: Final answer
    x = 2,950,809.75

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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.