Home / 3,402.42-4,695-1,986.24

Finding the Fourth Proportional to 3,402.42, 4,695 and 1,986.24

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Solution

The fourth proportional to 3,402.42, 4,695 and 1,986.24 is: 2,740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.42 : 4,695 = 1,986.24 : x
  2. Step 2: Convert to fraction form
    3,402.42/4,695 = 1,986.24/x
  3. Step 3: Cross multiply
    3,402.42x = 4,695 × 1,986.24
  4. Step 4: Simplify right side
    3,402.42x = 9,325,396.80
  5. Step 5: Solve for x
    x = 9,325,396.80/3,402.42
  6. Step 6: Final answer
    x = 2,740.81

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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.