Home / 1,299.55-1,949.33-325.66

Finding the Fourth Proportional to 1,299.55, 1,949.33 and 325.66

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Solution

The fourth proportional to 1,299.55, 1,949.33 and 325.66 is: 488.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299.55 : 1,949.33 = 325.66 : x
  2. Step 2: Convert to fraction form
    1,299.55/1,949.33 = 325.66/x
  3. Step 3: Cross multiply
    1,299.55x = 1,949.33 × 325.66
  4. Step 4: Simplify right side
    1,299.55x = 634,818.81
  5. Step 5: Solve for x
    x = 634,818.81/1,299.55
  6. Step 6: Final answer
    x = 488.49

Related Problems

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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.