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Finding the Fourth Proportional to 1,357.73, 1,873.36 and 798.23

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Solution

The fourth proportional to 1,357.73, 1,873.36 and 798.23 is: 1,101.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357.73 : 1,873.36 = 798.23 : x
  2. Step 2: Convert to fraction form
    1,357.73/1,873.36 = 798.23/x
  3. Step 3: Cross multiply
    1,357.73x = 1,873.36 × 798.23
  4. Step 4: Simplify right side
    1,357.73x = 1,495,367.30
  5. Step 5: Solve for x
    x = 1,495,367.30/1,357.73
  6. Step 6: Final answer
    x = 1,101.37

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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.