Home / 2,177.70-3,005.13-1,293.49

Finding the Fourth Proportional to 2,177.70, 3,005.13 and 1,293.49

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Solution

The fourth proportional to 2,177.70, 3,005.13 and 1,293.49 is: 1,784.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.70 : 3,005.13 = 1,293.49 : x
  2. Step 2: Convert to fraction form
    2,177.70/3,005.13 = 1,293.49/x
  3. Step 3: Cross multiply
    2,177.70x = 3,005.13 × 1,293.49
  4. Step 4: Simplify right side
    2,177.70x = 3,887,105.60
  5. Step 5: Solve for x
    x = 3,887,105.60/2,177.70
  6. Step 6: Final answer
    x = 1,784.96

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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.