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Finding the Fourth Proportional to 1,046.44, 1,440.90 and 935.56

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Solution

The fourth proportional to 1,046.44, 1,440.90 and 935.56 is: 1,288.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.44 : 1,440.90 = 935.56 : x
  2. Step 2: Convert to fraction form
    1,046.44/1,440.90 = 935.56/x
  3. Step 3: Cross multiply
    1,046.44x = 1,440.90 × 935.56
  4. Step 4: Simplify right side
    1,046.44x = 1,348,048.40
  5. Step 5: Solve for x
    x = 1,348,048.40/1,046.44
  6. Step 6: Final answer
    x = 1,288.22

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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.