Home / 1,392.17-2,076.48-1,174.23

Finding the Fourth Proportional to 1,392.17, 2,076.48 and 1,174.23

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Solution

The fourth proportional to 1,392.17, 2,076.48 and 1,174.23 is: 1,751.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392.17 : 2,076.48 = 1,174.23 : x
  2. Step 2: Convert to fraction form
    1,392.17/2,076.48 = 1,174.23/x
  3. Step 3: Cross multiply
    1,392.17x = 2,076.48 × 1,174.23
  4. Step 4: Simplify right side
    1,392.17x = 2,438,265.11
  5. Step 5: Solve for x
    x = 2,438,265.11/1,392.17
  6. Step 6: Final answer
    x = 1,751.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.