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Finding the Fourth Proportional to 910.54, 1,259.82 and 794.32

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Solution

The fourth proportional to 910.54, 1,259.82 and 794.32 is: 1,099.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    910.54 : 1,259.82 = 794.32 : x
  2. Step 2: Convert to fraction form
    910.54/1,259.82 = 794.32/x
  3. Step 3: Cross multiply
    910.54x = 1,259.82 × 794.32
  4. Step 4: Simplify right side
    910.54x = 1,000,700.22
  5. Step 5: Solve for x
    x = 1,000,700.22/910.54
  6. Step 6: Final answer
    x = 1,099.02

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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.