Home / 3,940,665.02-5,438,115.31-2,129,829.02

Finding the Fourth Proportional to 3,940,665.02, 5,438,115.31 and 2,129,829.02

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Solution

The fourth proportional to 3,940,665.02, 5,438,115.31 and 2,129,829.02 is: 2,939,162.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,665.02 : 5,438,115.31 = 2,129,829.02 : x
  2. Step 2: Convert to fraction form
    3,940,665.02/5,438,115.31 = 2,129,829.02/x
  3. Step 3: Cross multiply
    3,940,665.02x = 5,438,115.31 × 2,129,829.02
  4. Step 4: Simplify right side
    3,940,665.02x = 11,582,255,801,344.29
  5. Step 5: Solve for x
    x = 11,582,255,801,344.29/3,940,665.02
  6. Step 6: Final answer
    x = 2,939,162.74

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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.