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Finding the Fourth Proportional to 3,952.48, 5,930.62 and 1,980.14

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Solution

The fourth proportional to 3,952.48, 5,930.62 and 1,980.14 is: 2,971.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.48 : 5,930.62 = 1,980.14 : x
  2. Step 2: Convert to fraction form
    3,952.48/5,930.62 = 1,980.14/x
  3. Step 3: Cross multiply
    3,952.48x = 5,930.62 × 1,980.14
  4. Step 4: Simplify right side
    3,952.48x = 11,743,457.89
  5. Step 5: Solve for x
    x = 11,743,457.89/3,952.48
  6. Step 6: Final answer
    x = 2,971.16

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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.