Home / 3,012.12-4,517.14-931.84

Finding the Fourth Proportional to 3,012.12, 4,517.14 and 931.84

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Solution

The fourth proportional to 3,012.12, 4,517.14 and 931.84 is: 1,397.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.12 : 4,517.14 = 931.84 : x
  2. Step 2: Convert to fraction form
    3,012.12/4,517.14 = 931.84/x
  3. Step 3: Cross multiply
    3,012.12x = 4,517.14 × 931.84
  4. Step 4: Simplify right side
    3,012.12x = 4,209,251.74
  5. Step 5: Solve for x
    x = 4,209,251.74/3,012.12
  6. Step 6: Final answer
    x = 1,397.44

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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.