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Finding the Fourth Proportional to 1,031.42, 1,422.98 and 795.44

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Solution

The fourth proportional to 1,031.42, 1,422.98 and 795.44 is: 1,097.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.42 : 1,422.98 = 795.44 : x
  2. Step 2: Convert to fraction form
    1,031.42/1,422.98 = 795.44/x
  3. Step 3: Cross multiply
    1,031.42x = 1,422.98 × 795.44
  4. Step 4: Simplify right side
    1,031.42x = 1,131,895.21
  5. Step 5: Solve for x
    x = 1,131,895.21/1,031.42
  6. Step 6: Final answer
    x = 1,097.41

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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.