Home / 2,177.79-3,006.75-1,672.68

Finding the Fourth Proportional to 2,177.79, 3,006.75 and 1,672.68

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Solution

The fourth proportional to 2,177.79, 3,006.75 and 1,672.68 is: 2,309.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.79 : 3,006.75 = 1,672.68 : x
  2. Step 2: Convert to fraction form
    2,177.79/3,006.75 = 1,672.68/x
  3. Step 3: Cross multiply
    2,177.79x = 3,006.75 × 1,672.68
  4. Step 4: Simplify right side
    2,177.79x = 5,029,330.59
  5. Step 5: Solve for x
    x = 5,029,330.59/2,177.79
  6. Step 6: Final answer
    x = 2,309.37

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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.