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Finding the Fourth Proportional to 1,262.03, 1,891.82 and 440.08

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Solution

The fourth proportional to 1,262.03, 1,891.82 and 440.08 is: 659.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262.03 : 1,891.82 = 440.08 : x
  2. Step 2: Convert to fraction form
    1,262.03/1,891.82 = 440.08/x
  3. Step 3: Cross multiply
    1,262.03x = 1,891.82 × 440.08
  4. Step 4: Simplify right side
    1,262.03x = 832,548.52
  5. Step 5: Solve for x
    x = 832,548.52/1,262.03
  6. Step 6: Final answer
    x = 659.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.