Home / 2,138.36-2,946.56-1,577.94

Finding the Fourth Proportional to 2,138.36, 2,946.56 and 1,577.94

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Solution

The fourth proportional to 2,138.36, 2,946.56 and 1,577.94 is: 2,174.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.36 : 2,946.56 = 1,577.94 : x
  2. Step 2: Convert to fraction form
    2,138.36/2,946.56 = 1,577.94/x
  3. Step 3: Cross multiply
    2,138.36x = 2,946.56 × 1,577.94
  4. Step 4: Simplify right side
    2,138.36x = 4,649,494.89
  5. Step 5: Solve for x
    x = 4,649,494.89/2,138.36
  6. Step 6: Final answer
    x = 2,174.33

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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.