Home / 2,191,896-3,288,828.96-1,392,970.32

Finding the Fourth Proportional to 2,191,896, 3,288,828.96 and 1,392,970.32

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Solution

The fourth proportional to 2,191,896, 3,288,828.96 and 1,392,970.32 is: 2,090,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,896 : 3,288,828.96 = 1,392,970.32 : x
  2. Step 2: Convert to fraction form
    2,191,896/3,288,828.96 = 1,392,970.32/x
  3. Step 3: Cross multiply
    2,191,896x = 3,288,828.96 × 1,392,970.32
  4. Step 4: Simplify right side
    2,191,896x = 4,581,241,128,836.47
  5. Step 5: Solve for x
    x = 4,581,241,128,836.47/2,191,896
  6. Step 6: Final answer
    x = 2,090,081.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.