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Finding the Fourth Proportional to 1,456.25, 2,009.62 and 793.09

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Solution

The fourth proportional to 1,456.25, 2,009.62 and 793.09 is: 1,094.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.25 : 2,009.62 = 793.09 : x
  2. Step 2: Convert to fraction form
    1,456.25/2,009.62 = 793.09/x
  3. Step 3: Cross multiply
    1,456.25x = 2,009.62 × 793.09
  4. Step 4: Simplify right side
    1,456.25x = 1,593,816.80
  5. Step 5: Solve for x
    x = 1,593,816.80/1,456.25
  6. Step 6: Final answer
    x = 1,094.46

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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.