Home / 3,121,130.48-4,309,016.28-1,976,192.24

Finding the Fourth Proportional to 3,121,130.48, 4,309,016.28 and 1,976,192.24

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Solution

The fourth proportional to 3,121,130.48, 4,309,016.28 and 1,976,192.24 is: 2,728,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,130.48 : 4,309,016.28 = 1,976,192.24 : x
  2. Step 2: Convert to fraction form
    3,121,130.48/4,309,016.28 = 1,976,192.24/x
  3. Step 3: Cross multiply
    3,121,130.48x = 4,309,016.28 × 1,976,192.24
  4. Step 4: Simplify right side
    3,121,130.48x = 8,515,444,534,569.67
  5. Step 5: Solve for x
    x = 8,515,444,534,569.67/3,121,130.48
  6. Step 6: Final answer
    x = 2,728,320.58

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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.