Home / 2,154,163.89-2,972,764.32-1,187,296.59

Finding the Fourth Proportional to 2,154,163.89, 2,972,764.32 and 1,187,296.59

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Solution

The fourth proportional to 2,154,163.89, 2,972,764.32 and 1,187,296.59 is: 1,638,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,163.89 : 2,972,764.32 = 1,187,296.59 : x
  2. Step 2: Convert to fraction form
    2,154,163.89/2,972,764.32 = 1,187,296.59/x
  3. Step 3: Cross multiply
    2,154,163.89x = 2,972,764.32 × 1,187,296.59
  4. Step 4: Simplify right side
    2,154,163.89x = 3,529,552,940,009.67
  5. Step 5: Solve for x
    x = 3,529,552,940,009.67/2,154,163.89
  6. Step 6: Final answer
    x = 1,638,479.30

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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.