Home / 6,123.20-9,186.72-3,660.80

Finding the Fourth Proportional to 6,123.20, 9,186.72 and 3,660.80

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Solution

The fourth proportional to 6,123.20, 9,186.72 and 3,660.80 is: 5,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,123.20 : 9,186.72 = 3,660.80 : x
  2. Step 2: Convert to fraction form
    6,123.20/9,186.72 = 3,660.80/x
  3. Step 3: Cross multiply
    6,123.20x = 9,186.72 × 3,660.80
  4. Step 4: Simplify right side
    6,123.20x = 33,630,744.58
  5. Step 5: Solve for x
    x = 33,630,744.58/6,123.20
  6. Step 6: Final answer
    x = 5,492.35

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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.