Home / 4,180.34-6,268.11-1,257.78

Finding the Fourth Proportional to 4,180.34, 6,268.11 and 1,257.78

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Solution

The fourth proportional to 4,180.34, 6,268.11 and 1,257.78 is: 1,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,180.34 : 6,268.11 = 1,257.78 : x
  2. Step 2: Convert to fraction form
    4,180.34/6,268.11 = 1,257.78/x
  3. Step 3: Cross multiply
    4,180.34x = 6,268.11 × 1,257.78
  4. Step 4: Simplify right side
    4,180.34x = 7,883,903.40
  5. Step 5: Solve for x
    x = 7,883,903.40/4,180.34
  6. Step 6: Final answer
    x = 1,885.95

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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.