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Finding the Fourth Proportional to 1,330.72, 1,832.56 and 1,326.67

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Solution

The fourth proportional to 1,330.72, 1,832.56 and 1,326.67 is: 1,826.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.72 : 1,832.56 = 1,326.67 : x
  2. Step 2: Convert to fraction form
    1,330.72/1,832.56 = 1,326.67/x
  3. Step 3: Cross multiply
    1,330.72x = 1,832.56 × 1,326.67
  4. Step 4: Simplify right side
    1,330.72x = 2,431,202.38
  5. Step 5: Solve for x
    x = 2,431,202.38/1,330.72
  6. Step 6: Final answer
    x = 1,826.98

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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.