Home / 4,251.74-6,377.62-1,290.21

Finding the Fourth Proportional to 4,251.74, 6,377.62 and 1,290.21

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Solution

The fourth proportional to 4,251.74, 6,377.62 and 1,290.21 is: 1,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.74 : 6,377.62 = 1,290.21 : x
  2. Step 2: Convert to fraction form
    4,251.74/6,377.62 = 1,290.21/x
  3. Step 3: Cross multiply
    4,251.74x = 6,377.62 × 1,290.21
  4. Step 4: Simplify right side
    4,251.74x = 8,228,433.99
  5. Step 5: Solve for x
    x = 8,228,433.99/4,251.74
  6. Step 6: Final answer
    x = 1,935.31

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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.