Home / 3,503.21-5,254.82-1,311.42

Finding the Fourth Proportional to 3,503.21, 5,254.82 and 1,311.42

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Solution

The fourth proportional to 3,503.21, 5,254.82 and 1,311.42 is: 1,967.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.21 : 5,254.82 = 1,311.42 : x
  2. Step 2: Convert to fraction form
    3,503.21/5,254.82 = 1,311.42/x
  3. Step 3: Cross multiply
    3,503.21x = 5,254.82 × 1,311.42
  4. Step 4: Simplify right side
    3,503.21x = 6,891,269.49
  5. Step 5: Solve for x
    x = 6,891,269.49/3,503.21
  6. Step 6: Final answer
    x = 1,967.13

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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.