Home / 3,549.28-4,896.90-1,977.10

Finding the Fourth Proportional to 3,549.28, 4,896.90 and 1,977.10

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Solution

The fourth proportional to 3,549.28, 4,896.90 and 1,977.10 is: 2,727.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,549.28 : 4,896.90 = 1,977.10 : x
  2. Step 2: Convert to fraction form
    3,549.28/4,896.90 = 1,977.10/x
  3. Step 3: Cross multiply
    3,549.28x = 4,896.90 × 1,977.10
  4. Step 4: Simplify right side
    3,549.28x = 9,681,660.99
  5. Step 5: Solve for x
    x = 9,681,660.99/3,549.28
  6. Step 6: Final answer
    x = 2,727.78

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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.