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Finding the Fourth Proportional to 2,572.56, 3,858.84 and 624.76

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Solution

The fourth proportional to 2,572.56, 3,858.84 and 624.76 is: 937.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.56 : 3,858.84 = 624.76 : x
  2. Step 2: Convert to fraction form
    2,572.56/3,858.84 = 624.76/x
  3. Step 3: Cross multiply
    2,572.56x = 3,858.84 × 624.76
  4. Step 4: Simplify right side
    2,572.56x = 2,410,839.23
  5. Step 5: Solve for x
    x = 2,410,839.23/2,572.56
  6. Step 6: Final answer
    x = 937.14

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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.