Home / 1,330.38-1,827.96-1,245.06

Finding the Fourth Proportional to 1,330.38, 1,827.96 and 1,245.06

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Solution

The fourth proportional to 1,330.38, 1,827.96 and 1,245.06 is: 1,710.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.38 : 1,827.96 = 1,245.06 : x
  2. Step 2: Convert to fraction form
    1,330.38/1,827.96 = 1,245.06/x
  3. Step 3: Cross multiply
    1,330.38x = 1,827.96 × 1,245.06
  4. Step 4: Simplify right side
    1,330.38x = 2,275,919.88
  5. Step 5: Solve for x
    x = 2,275,919.88/1,330.38
  6. Step 6: Final answer
    x = 1,710.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.