Home / 3,012.74-4,515.46-1,277.72

Finding the Fourth Proportional to 3,012.74, 4,515.46 and 1,277.72

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Solution

The fourth proportional to 3,012.74, 4,515.46 and 1,277.72 is: 1,915.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.74 : 4,515.46 = 1,277.72 : x
  2. Step 2: Convert to fraction form
    3,012.74/4,515.46 = 1,277.72/x
  3. Step 3: Cross multiply
    3,012.74x = 4,515.46 × 1,277.72
  4. Step 4: Simplify right side
    3,012.74x = 5,769,491.90
  5. Step 5: Solve for x
    x = 5,769,491.90/3,012.74
  6. Step 6: Final answer
    x = 1,915.03

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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.