Home / 4,188.60-6,281.06-2,107.80

Finding the Fourth Proportional to 4,188.60, 6,281.06 and 2,107.80

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Solution

The fourth proportional to 4,188.60, 6,281.06 and 2,107.80 is: 3,160.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.60 : 6,281.06 = 2,107.80 : x
  2. Step 2: Convert to fraction form
    4,188.60/6,281.06 = 2,107.80/x
  3. Step 3: Cross multiply
    4,188.60x = 6,281.06 × 2,107.80
  4. Step 4: Simplify right side
    4,188.60x = 13,239,218.27
  5. Step 5: Solve for x
    x = 13,239,218.27/4,188.60
  6. Step 6: Final answer
    x = 3,160.77

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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.