Home / 2,810,343.74-3,878,284.05-1,521,183.78

Finding the Fourth Proportional to 2,810,343.74, 3,878,284.05 and 1,521,183.78

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Solution

The fourth proportional to 2,810,343.74, 3,878,284.05 and 1,521,183.78 is: 2,099,238.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810,343.74 : 3,878,284.05 = 1,521,183.78 : x
  2. Step 2: Convert to fraction form
    2,810,343.74/3,878,284.05 = 1,521,183.78/x
  3. Step 3: Cross multiply
    2,810,343.74x = 3,878,284.05 × 1,521,183.78
  4. Step 4: Simplify right side
    2,810,343.74x = 5,899,582,791,092.71
  5. Step 5: Solve for x
    x = 5,899,582,791,092.71/2,810,343.74
  6. Step 6: Final answer
    x = 2,099,238.86

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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.