Home / 4,220.69-6,330.57-1,299.23

Finding the Fourth Proportional to 4,220.69, 6,330.57 and 1,299.23

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Solution

The fourth proportional to 4,220.69, 6,330.57 and 1,299.23 is: 1,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.69 : 6,330.57 = 1,299.23 : x
  2. Step 2: Convert to fraction form
    4,220.69/6,330.57 = 1,299.23/x
  3. Step 3: Cross multiply
    4,220.69x = 6,330.57 × 1,299.23
  4. Step 4: Simplify right side
    4,220.69x = 8,224,834.81
  5. Step 5: Solve for x
    x = 8,224,834.81/4,220.69
  6. Step 6: Final answer
    x = 1,948.70

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Half scale
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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.