Home / 3,780,812.88-5,217,313.68-2,148,993.36

Finding the Fourth Proportional to 3,780,812.88, 5,217,313.68 and 2,148,993.36

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Solution

The fourth proportional to 3,780,812.88, 5,217,313.68 and 2,148,993.36 is: 2,965,492.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780,812.88 : 5,217,313.68 = 2,148,993.36 : x
  2. Step 2: Convert to fraction form
    3,780,812.88/5,217,313.68 = 2,148,993.36/x
  3. Step 3: Cross multiply
    3,780,812.88x = 5,217,313.68 × 2,148,993.36
  4. Step 4: Simplify right side
    3,780,812.88x = 11,211,972,455,357.16
  5. Step 5: Solve for x
    x = 11,211,972,455,357.16/3,780,812.88
  6. Step 6: Final answer
    x = 2,965,492.56

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1.5x scale

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.