Home / 3,928,819.14-5,421,477.32-2,209,607.51

Finding the Fourth Proportional to 3,928,819.14, 5,421,477.32 and 2,209,607.51

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Solution

The fourth proportional to 3,928,819.14, 5,421,477.32 and 2,209,607.51 is: 3,049,093.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,819.14 : 5,421,477.32 = 2,209,607.51 : x
  2. Step 2: Convert to fraction form
    3,928,819.14/5,421,477.32 = 2,209,607.51/x
  3. Step 3: Cross multiply
    3,928,819.14x = 5,421,477.32 × 2,209,607.51
  4. Step 4: Simplify right side
    3,928,819.14x = 11,979,336,971,697.28
  5. Step 5: Solve for x
    x = 11,979,336,971,697.28/3,928,819.14
  6. Step 6: Final answer
    x = 3,049,093.52

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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.