Home / 3,011.18-4,517.21-931.37

Finding the Fourth Proportional to 3,011.18, 4,517.21 and 931.37

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Solution

The fourth proportional to 3,011.18, 4,517.21 and 931.37 is: 1,397.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.18 : 4,517.21 = 931.37 : x
  2. Step 2: Convert to fraction form
    3,011.18/4,517.21 = 931.37/x
  3. Step 3: Cross multiply
    3,011.18x = 4,517.21 × 931.37
  4. Step 4: Simplify right side
    3,011.18x = 4,207,193.88
  5. Step 5: Solve for x
    x = 4,207,193.88/3,011.18
  6. Step 6: Final answer
    x = 1,397.19

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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.