Home / 2,121.23-2,927.48-1,177.33

Finding the Fourth Proportional to 2,121.23, 2,927.48 and 1,177.33

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Solution

The fourth proportional to 2,121.23, 2,927.48 and 1,177.33 is: 1,624.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.23 : 2,927.48 = 1,177.33 : x
  2. Step 2: Convert to fraction form
    2,121.23/2,927.48 = 1,177.33/x
  3. Step 3: Cross multiply
    2,121.23x = 2,927.48 × 1,177.33
  4. Step 4: Simplify right side
    2,121.23x = 3,446,605.65
  5. Step 5: Solve for x
    x = 3,446,605.65/2,121.23
  6. Step 6: Final answer
    x = 1,624.81

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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.