Home / 2,177.40-3,005.44-1,293.54

Finding the Fourth Proportional to 2,177.40, 3,005.44 and 1,293.54

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Solution

The fourth proportional to 2,177.40, 3,005.44 and 1,293.54 is: 1,785.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.40 : 3,005.44 = 1,293.54 : x
  2. Step 2: Convert to fraction form
    2,177.40/3,005.44 = 1,293.54/x
  3. Step 3: Cross multiply
    2,177.40x = 3,005.44 × 1,293.54
  4. Step 4: Simplify right side
    2,177.40x = 3,887,656.86
  5. Step 5: Solve for x
    x = 3,887,656.86/2,177.40
  6. Step 6: Final answer
    x = 1,785.46

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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.