Home / 3,012.07-4,520.03-1,280.70

Finding the Fourth Proportional to 3,012.07, 4,520.03 and 1,280.70

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Solution

The fourth proportional to 3,012.07, 4,520.03 and 1,280.70 is: 1,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.07 : 4,520.03 = 1,280.70 : x
  2. Step 2: Convert to fraction form
    3,012.07/4,520.03 = 1,280.70/x
  3. Step 3: Cross multiply
    3,012.07x = 4,520.03 × 1,280.70
  4. Step 4: Simplify right side
    3,012.07x = 5,788,802.42
  5. Step 5: Solve for x
    x = 5,788,802.42/3,012.07
  6. Step 6: Final answer
    x = 1,921.87

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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.