Home / 2,121.67-2,927.93-1,177.48

Finding the Fourth Proportional to 2,121.67, 2,927.93 and 1,177.48

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Solution

The fourth proportional to 2,121.67, 2,927.93 and 1,177.48 is: 1,624.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.67 : 2,927.93 = 1,177.48 : x
  2. Step 2: Convert to fraction form
    2,121.67/2,927.93 = 1,177.48/x
  3. Step 3: Cross multiply
    2,121.67x = 2,927.93 × 1,177.48
  4. Step 4: Simplify right side
    2,121.67x = 3,447,579.02
  5. Step 5: Solve for x
    x = 3,447,579.02/2,121.67
  6. Step 6: Final answer
    x = 1,624.94

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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.