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Finding the Fourth Proportional to 1,444.03, 1,992.66 and 814.36

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Solution

The fourth proportional to 1,444.03, 1,992.66 and 814.36 is: 1,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.03 : 1,992.66 = 814.36 : x
  2. Step 2: Convert to fraction form
    1,444.03/1,992.66 = 814.36/x
  3. Step 3: Cross multiply
    1,444.03x = 1,992.66 × 814.36
  4. Step 4: Simplify right side
    1,444.03x = 1,622,742.60
  5. Step 5: Solve for x
    x = 1,622,742.60/1,444.03
  6. Step 6: Final answer
    x = 1,123.76

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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.