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Finding the Fourth Proportional to 4,693.26, 7,039.90 and 1,230.50

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Solution

The fourth proportional to 4,693.26, 7,039.90 and 1,230.50 is: 1,845.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,693.26 : 7,039.90 = 1,230.50 : x
  2. Step 2: Convert to fraction form
    4,693.26/7,039.90 = 1,230.50/x
  3. Step 3: Cross multiply
    4,693.26x = 7,039.90 × 1,230.50
  4. Step 4: Simplify right side
    4,693.26x = 8,662,596.95
  5. Step 5: Solve for x
    x = 8,662,596.95/4,693.26
  6. Step 6: Final answer
    x = 1,845.75

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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.