Home / 2,128,431.22-2,937,296.85-1,161,623.54

Finding the Fourth Proportional to 2,128,431.22, 2,937,296.85 and 1,161,623.54

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Solution

The fourth proportional to 2,128,431.22, 2,937,296.85 and 1,161,623.54 is: 1,603,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,431.22 : 2,937,296.85 = 1,161,623.54 : x
  2. Step 2: Convert to fraction form
    2,128,431.22/2,937,296.85 = 1,161,623.54/x
  3. Step 3: Cross multiply
    2,128,431.22x = 2,937,296.85 × 1,161,623.54
  4. Step 4: Simplify right side
    2,128,431.22x = 3,412,033,164,927.85
  5. Step 5: Solve for x
    x = 3,412,033,164,927.85/2,128,431.22
  6. Step 6: Final answer
    x = 1,603,074.20

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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.