Home / 3,011.58-4,516.81-931.32

Finding the Fourth Proportional to 3,011.58, 4,516.81 and 931.32

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Solution

The fourth proportional to 3,011.58, 4,516.81 and 931.32 is: 1,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.58 : 4,516.81 = 931.32 : x
  2. Step 2: Convert to fraction form
    3,011.58/4,516.81 = 931.32/x
  3. Step 3: Cross multiply
    3,011.58x = 4,516.81 × 931.32
  4. Step 4: Simplify right side
    3,011.58x = 4,206,593.16
  5. Step 5: Solve for x
    x = 4,206,593.16/3,011.58
  6. Step 6: Final answer
    x = 1,396.81

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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.