Home / 3,011.80-4,516.08-1,255.72

Finding the Fourth Proportional to 3,011.80, 4,516.08 and 1,255.72

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Solution

The fourth proportional to 3,011.80, 4,516.08 and 1,255.72 is: 1,882.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.80 : 4,516.08 = 1,255.72 : x
  2. Step 2: Convert to fraction form
    3,011.80/4,516.08 = 1,255.72/x
  3. Step 3: Cross multiply
    3,011.80x = 4,516.08 × 1,255.72
  4. Step 4: Simplify right side
    3,011.80x = 5,670,931.98
  5. Step 5: Solve for x
    x = 5,670,931.98/3,011.80
  6. Step 6: Final answer
    x = 1,882.90

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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.