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Finding the Fourth Proportional to 3,010.13, 4,515.62 and 930.31

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Solution

The fourth proportional to 3,010.13, 4,515.62 and 930.31 is: 1,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,010.13 : 4,515.62 = 930.31 : x
  2. Step 2: Convert to fraction form
    3,010.13/4,515.62 = 930.31/x
  3. Step 3: Cross multiply
    3,010.13x = 4,515.62 × 930.31
  4. Step 4: Simplify right side
    3,010.13x = 4,200,926.44
  5. Step 5: Solve for x
    x = 4,200,926.44/3,010.13
  6. Step 6: Final answer
    x = 1,395.60

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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.