Home / 4,221.23-6,332.18-1,299.53

Finding the Fourth Proportional to 4,221.23, 6,332.18 and 1,299.53

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Solution

The fourth proportional to 4,221.23, 6,332.18 and 1,299.53 is: 1,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.23 : 6,332.18 = 1,299.53 : x
  2. Step 2: Convert to fraction form
    4,221.23/6,332.18 = 1,299.53/x
  3. Step 3: Cross multiply
    4,221.23x = 6,332.18 × 1,299.53
  4. Step 4: Simplify right side
    4,221.23x = 8,228,857.88
  5. Step 5: Solve for x
    x = 8,228,857.88/4,221.23
  6. Step 6: Final answer
    x = 1,949.40

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Double scale
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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.