Home / 2,180.10-3,008.55-1,295.73

Finding the Fourth Proportional to 2,180.10, 3,008.55 and 1,295.73

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Solution

The fourth proportional to 2,180.10, 3,008.55 and 1,295.73 is: 1,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.10 : 3,008.55 = 1,295.73 : x
  2. Step 2: Convert to fraction form
    2,180.10/3,008.55 = 1,295.73/x
  3. Step 3: Cross multiply
    2,180.10x = 3,008.55 × 1,295.73
  4. Step 4: Simplify right side
    2,180.10x = 3,898,268.49
  5. Step 5: Solve for x
    x = 3,898,268.49/2,180.10
  6. Step 6: Final answer
    x = 1,788.11

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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.