Home / 4,191.60-6,277.80-2,137.20

Finding the Fourth Proportional to 4,191.60, 6,277.80 and 2,137.20

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Solution

The fourth proportional to 4,191.60, 6,277.80 and 2,137.20 is: 3,200.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.60 : 6,277.80 = 2,137.20 : x
  2. Step 2: Convert to fraction form
    4,191.60/6,277.80 = 2,137.20/x
  3. Step 3: Cross multiply
    4,191.60x = 6,277.80 × 2,137.20
  4. Step 4: Simplify right side
    4,191.60x = 13,416,914.16
  5. Step 5: Solve for x
    x = 13,416,914.16/4,191.60
  6. Step 6: Final answer
    x = 3,200.91

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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.