Home / 3,879,357.86-5,353,679.91-2,160,478.37

Finding the Fourth Proportional to 3,879,357.86, 5,353,679.91 and 2,160,478.37

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Solution

The fourth proportional to 3,879,357.86, 5,353,679.91 and 2,160,478.37 is: 2,981,552.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879,357.86 : 5,353,679.91 = 2,160,478.37 : x
  2. Step 2: Convert to fraction form
    3,879,357.86/5,353,679.91 = 2,160,478.37/x
  3. Step 3: Cross multiply
    3,879,357.86x = 5,353,679.91 × 2,160,478.37
  4. Step 4: Simplify right side
    3,879,357.86x = 11,566,509,666,944.54
  5. Step 5: Solve for x
    x = 11,566,509,666,944.54/3,879,357.86
  6. Step 6: Final answer
    x = 2,981,552.64

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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.