Home / 3,012.39-4,519.47-1,281.15

Finding the Fourth Proportional to 3,012.39, 4,519.47 and 1,281.15

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Solution

The fourth proportional to 3,012.39, 4,519.47 and 1,281.15 is: 1,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.39 : 4,519.47 = 1,281.15 : x
  2. Step 2: Convert to fraction form
    3,012.39/4,519.47 = 1,281.15/x
  3. Step 3: Cross multiply
    3,012.39x = 4,519.47 × 1,281.15
  4. Step 4: Simplify right side
    3,012.39x = 5,790,118.99
  5. Step 5: Solve for x
    x = 5,790,118.99/3,012.39
  6. Step 6: Final answer
    x = 1,922.10

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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.