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Finding the Fourth Proportional to 1,456.35, 2,009.77 and 793.22

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Solution

The fourth proportional to 1,456.35, 2,009.77 and 793.22 is: 1,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.35 : 2,009.77 = 793.22 : x
  2. Step 2: Convert to fraction form
    1,456.35/2,009.77 = 793.22/x
  3. Step 3: Cross multiply
    1,456.35x = 2,009.77 × 793.22
  4. Step 4: Simplify right side
    1,456.35x = 1,594,199.17
  5. Step 5: Solve for x
    x = 1,594,199.17/1,456.35
  6. Step 6: Final answer
    x = 1,094.66

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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.