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Finding the Fourth Proportional to 4,901.68, 7,352.76 and 1,979.62

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Solution

The fourth proportional to 4,901.68, 7,352.76 and 1,979.62 is: 2,969.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.68 : 7,352.76 = 1,979.62 : x
  2. Step 2: Convert to fraction form
    4,901.68/7,352.76 = 1,979.62/x
  3. Step 3: Cross multiply
    4,901.68x = 7,352.76 × 1,979.62
  4. Step 4: Simplify right side
    4,901.68x = 14,555,670.75
  5. Step 5: Solve for x
    x = 14,555,670.75/4,901.68
  6. Step 6: Final answer
    x = 2,969.53

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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.