Home / 3,927,721.20-5,419,779.05-2,184,978.63

Finding the Fourth Proportional to 3,927,721.20, 5,419,779.05 and 2,184,978.63

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Solution

The fourth proportional to 3,927,721.20, 5,419,779.05 and 2,184,978.63 is: 3,015,005.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927,721.20 : 5,419,779.05 = 2,184,978.63 : x
  2. Step 2: Convert to fraction form
    3,927,721.20/5,419,779.05 = 2,184,978.63/x
  3. Step 3: Cross multiply
    3,927,721.20x = 5,419,779.05 × 2,184,978.63
  4. Step 4: Simplify right side
    3,927,721.20x = 11,842,101,392,646.81
  5. Step 5: Solve for x
    x = 11,842,101,392,646.81/3,927,721.20
  6. Step 6: Final answer
    x = 3,015,005.59

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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.