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Finding the Fourth Proportional to 3,477.99, 4,799.97 and 1,986.13

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Solution

The fourth proportional to 3,477.99, 4,799.97 and 1,986.13 is: 2,741.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.99 : 4,799.97 = 1,986.13 : x
  2. Step 2: Convert to fraction form
    3,477.99/4,799.97 = 1,986.13/x
  3. Step 3: Cross multiply
    3,477.99x = 4,799.97 × 1,986.13
  4. Step 4: Simplify right side
    3,477.99x = 9,533,362.97
  5. Step 5: Solve for x
    x = 9,533,362.97/3,477.99
  6. Step 6: Final answer
    x = 2,741.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.