Home / 1,256.04-1,883.38-378.42

Finding the Fourth Proportional to 1,256.04, 1,883.38 and 378.42

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Solution

The fourth proportional to 1,256.04, 1,883.38 and 378.42 is: 567.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256.04 : 1,883.38 = 378.42 : x
  2. Step 2: Convert to fraction form
    1,256.04/1,883.38 = 378.42/x
  3. Step 3: Cross multiply
    1,256.04x = 1,883.38 × 378.42
  4. Step 4: Simplify right side
    1,256.04x = 712,708.66
  5. Step 5: Solve for x
    x = 712,708.66/1,256.04
  6. Step 6: Final answer
    x = 567.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.