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Finding the Fourth Proportional to 1,349.59, 1,864.19 and 996.23

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Solution

The fourth proportional to 1,349.59, 1,864.19 and 996.23 is: 1,376.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.59 : 1,864.19 = 996.23 : x
  2. Step 2: Convert to fraction form
    1,349.59/1,864.19 = 996.23/x
  3. Step 3: Cross multiply
    1,349.59x = 1,864.19 × 996.23
  4. Step 4: Simplify right side
    1,349.59x = 1,857,147.70
  5. Step 5: Solve for x
    x = 1,857,147.70/1,349.59
  6. Step 6: Final answer
    x = 1,376.09

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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.