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Finding the Fourth Proportional to 1,493.42, 2,240.31 and 627.62

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Solution

The fourth proportional to 1,493.42, 2,240.31 and 627.62 is: 941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.42 : 2,240.31 = 627.62 : x
  2. Step 2: Convert to fraction form
    1,493.42/2,240.31 = 627.62/x
  3. Step 3: Cross multiply
    1,493.42x = 2,240.31 × 627.62
  4. Step 4: Simplify right side
    1,493.42x = 1,406,063.36
  5. Step 5: Solve for x
    x = 1,406,063.36/1,493.42
  6. Step 6: Final answer
    x = 941.51

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Half scale
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Double scale
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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.