Home / 1,174.88-1,628.76-1,112.46

Finding the Fourth Proportional to 1,174.88, 1,628.76 and 1,112.46

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Solution

The fourth proportional to 1,174.88, 1,628.76 and 1,112.46 is: 1,542.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.88 : 1,628.76 = 1,112.46 : x
  2. Step 2: Convert to fraction form
    1,174.88/1,628.76 = 1,112.46/x
  3. Step 3: Cross multiply
    1,174.88x = 1,628.76 × 1,112.46
  4. Step 4: Simplify right side
    1,174.88x = 1,811,934.37
  5. Step 5: Solve for x
    x = 1,811,934.37/1,174.88
  6. Step 6: Final answer
    x = 1,542.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.