Home / 3,929,806.80-5,423,124.96-2,210,928.48

Finding the Fourth Proportional to 3,929,806.80, 5,423,124.96 and 2,210,928.48

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Solution

The fourth proportional to 3,929,806.80, 5,423,124.96 and 2,210,928.48 is: 3,051,076.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929,806.80 : 5,423,124.96 = 2,210,928.48 : x
  2. Step 2: Convert to fraction form
    3,929,806.80/5,423,124.96 = 2,210,928.48/x
  3. Step 3: Cross multiply
    3,929,806.80x = 5,423,124.96 × 2,210,928.48
  4. Step 4: Simplify right side
    3,929,806.80x = 11,990,141,424,662.86
  5. Step 5: Solve for x
    x = 11,990,141,424,662.86/3,929,806.80
  6. Step 6: Final answer
    x = 3,051,076.56

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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.