Home / 4,245.60-6,368.40-4,221.30

Finding the Fourth Proportional to 4,245.60, 6,368.40 and 4,221.30

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Solution

The fourth proportional to 4,245.60, 6,368.40 and 4,221.30 is: 6,331.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245.60 : 6,368.40 = 4,221.30 : x
  2. Step 2: Convert to fraction form
    4,245.60/6,368.40 = 4,221.30/x
  3. Step 3: Cross multiply
    4,245.60x = 6,368.40 × 4,221.30
  4. Step 4: Simplify right side
    4,245.60x = 26,882,926.92
  5. Step 5: Solve for x
    x = 26,882,926.92/4,245.60
  6. Step 6: Final answer
    x = 6,331.95

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Similar ratio
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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.