Home / 4,179.69-6,268.32-1,257.21

Finding the Fourth Proportional to 4,179.69, 6,268.32 and 1,257.21

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Solution

The fourth proportional to 4,179.69, 6,268.32 and 1,257.21 is: 1,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179.69 : 6,268.32 = 1,257.21 : x
  2. Step 2: Convert to fraction form
    4,179.69/6,268.32 = 1,257.21/x
  3. Step 3: Cross multiply
    4,179.69x = 6,268.32 × 1,257.21
  4. Step 4: Simplify right side
    4,179.69x = 7,880,594.59
  5. Step 5: Solve for x
    x = 7,880,594.59/4,179.69
  6. Step 6: Final answer
    x = 1,885.45

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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.