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Finding the Fourth Proportional to 4,908.66, 7,362.99 and 1,986.18

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Solution

The fourth proportional to 4,908.66, 7,362.99 and 1,986.18 is: 2,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.66 : 7,362.99 = 1,986.18 : x
  2. Step 2: Convert to fraction form
    4,908.66/7,362.99 = 1,986.18/x
  3. Step 3: Cross multiply
    4,908.66x = 7,362.99 × 1,986.18
  4. Step 4: Simplify right side
    4,908.66x = 14,624,223.48
  5. Step 5: Solve for x
    x = 14,624,223.48/4,908.66
  6. Step 6: Final answer
    x = 2,979.27

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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.