Home / 4,199.80-6,280.71-3,146.41

Finding the Fourth Proportional to 4,199.80, 6,280.71 and 3,146.41

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Solution

The fourth proportional to 4,199.80, 6,280.71 and 3,146.41 is: 4,705.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,199.80 : 6,280.71 = 3,146.41 : x
  2. Step 2: Convert to fraction form
    4,199.80/6,280.71 = 3,146.41/x
  3. Step 3: Cross multiply
    4,199.80x = 6,280.71 × 3,146.41
  4. Step 4: Simplify right side
    4,199.80x = 19,761,688.75
  5. Step 5: Solve for x
    x = 19,761,688.75/4,199.80
  6. Step 6: Final answer
    x = 4,705.39

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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.