Home / 2,187,104.42-3,018,349.17-1,220,255.64

Finding the Fourth Proportional to 2,187,104.42, 3,018,349.17 and 1,220,255.64

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Solution

The fourth proportional to 2,187,104.42, 3,018,349.17 and 1,220,255.64 is: 1,684,033.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,104.42 : 3,018,349.17 = 1,220,255.64 : x
  2. Step 2: Convert to fraction form
    2,187,104.42/3,018,349.17 = 1,220,255.64/x
  3. Step 3: Cross multiply
    2,187,104.42x = 3,018,349.17 × 1,220,255.64
  4. Step 4: Simplify right side
    2,187,104.42x = 3,683,157,598,181.82
  5. Step 5: Solve for x
    x = 3,683,157,598,181.82/2,187,104.42
  6. Step 6: Final answer
    x = 1,684,033.73

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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.