Home / 2,121.49-2,927.58-1,177.27

Finding the Fourth Proportional to 2,121.49, 2,927.58 and 1,177.27

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Solution

The fourth proportional to 2,121.49, 2,927.58 and 1,177.27 is: 1,624.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.49 : 2,927.58 = 1,177.27 : x
  2. Step 2: Convert to fraction form
    2,121.49/2,927.58 = 1,177.27/x
  3. Step 3: Cross multiply
    2,121.49x = 2,927.58 × 1,177.27
  4. Step 4: Simplify right side
    2,121.49x = 3,446,540.37
  5. Step 5: Solve for x
    x = 3,446,540.37/2,121.49
  6. Step 6: Final answer
    x = 1,624.58

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1.5x scale

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.