Home / 3,753,071.40-5,179,182.24-2,121,421.36

Finding the Fourth Proportional to 3,753,071.40, 5,179,182.24 and 2,121,421.36

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Solution

The fourth proportional to 3,753,071.40, 5,179,182.24 and 2,121,421.36 is: 2,927,529.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753,071.40 : 5,179,182.24 = 2,121,421.36 : x
  2. Step 2: Convert to fraction form
    3,753,071.40/5,179,182.24 = 2,121,421.36/x
  3. Step 3: Cross multiply
    3,753,071.40x = 5,179,182.24 × 2,121,421.36
  4. Step 4: Simplify right side
    3,753,071.40x = 10,987,227,831,268.65
  5. Step 5: Solve for x
    x = 10,987,227,831,268.65/3,753,071.40
  6. Step 6: Final answer
    x = 2,927,529.66

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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.