Home / 3,847,672.48-5,309,944.32-2,128,765

Finding the Fourth Proportional to 3,847,672.48, 5,309,944.32 and 2,128,765

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Solution

The fourth proportional to 3,847,672.48, 5,309,944.32 and 2,128,765 is: 2,937,782.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,847,672.48 : 5,309,944.32 = 2,128,765 : x
  2. Step 2: Convert to fraction form
    3,847,672.48/5,309,944.32 = 2,128,765/x
  3. Step 3: Cross multiply
    3,847,672.48x = 5,309,944.32 × 2,128,765
  4. Step 4: Simplify right side
    3,847,672.48x = 11,303,623,620,364.80
  5. Step 5: Solve for x
    x = 11,303,623,620,364.80/3,847,672.48
  6. Step 6: Final answer
    x = 2,937,782.17

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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.