Home / 2,177.32-3,005.10-1,293.61

Finding the Fourth Proportional to 2,177.32, 3,005.10 and 1,293.61

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Solution

The fourth proportional to 2,177.32, 3,005.10 and 1,293.61 is: 1,785.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.32 : 3,005.10 = 1,293.61 : x
  2. Step 2: Convert to fraction form
    2,177.32/3,005.10 = 1,293.61/x
  3. Step 3: Cross multiply
    2,177.32x = 3,005.10 × 1,293.61
  4. Step 4: Simplify right side
    2,177.32x = 3,887,427.41
  5. Step 5: Solve for x
    x = 3,887,427.41/2,177.32
  6. Step 6: Final answer
    x = 1,785.42

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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.