Home / 1,771.79-2,445.94-1,372.56

Finding the Fourth Proportional to 1,771.79, 2,445.94 and 1,372.56

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Solution

The fourth proportional to 1,771.79, 2,445.94 and 1,372.56 is: 1,894.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.79 : 2,445.94 = 1,372.56 : x
  2. Step 2: Convert to fraction form
    1,771.79/2,445.94 = 1,372.56/x
  3. Step 3: Cross multiply
    1,771.79x = 2,445.94 × 1,372.56
  4. Step 4: Simplify right side
    1,771.79x = 3,357,201.12
  5. Step 5: Solve for x
    x = 3,357,201.12/1,771.79
  6. Step 6: Final answer
    x = 1,894.81

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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.