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Finding the Fourth Proportional to 2,462.42, 3,692.40 and 818.39

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Solution

The fourth proportional to 2,462.42, 3,692.40 and 818.39 is: 1,227.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,462.42 : 3,692.40 = 818.39 : x
  2. Step 2: Convert to fraction form
    2,462.42/3,692.40 = 818.39/x
  3. Step 3: Cross multiply
    2,462.42x = 3,692.40 × 818.39
  4. Step 4: Simplify right side
    2,462.42x = 3,021,823.24
  5. Step 5: Solve for x
    x = 3,021,823.24/2,462.42
  6. Step 6: Final answer
    x = 1,227.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.