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Finding the Fourth Proportional to 926.01, 1,271.20 and 794.79

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Solution

The fourth proportional to 926.01, 1,271.20 and 794.79 is: 1,091.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.01 : 1,271.20 = 794.79 : x
  2. Step 2: Convert to fraction form
    926.01/1,271.20 = 794.79/x
  3. Step 3: Cross multiply
    926.01x = 1,271.20 × 794.79
  4. Step 4: Simplify right side
    926.01x = 1,010,337.05
  5. Step 5: Solve for x
    x = 1,010,337.05/926.01
  6. Step 6: Final answer
    x = 1,091.06

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.