Home / 3,616.56-4,990.68-2,219.28

Finding the Fourth Proportional to 3,616.56, 4,990.68 and 2,219.28

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Solution

The fourth proportional to 3,616.56, 4,990.68 and 2,219.28 is: 3,062.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.56 : 4,990.68 = 2,219.28 : x
  2. Step 2: Convert to fraction form
    3,616.56/4,990.68 = 2,219.28/x
  3. Step 3: Cross multiply
    3,616.56x = 4,990.68 × 2,219.28
  4. Step 4: Simplify right side
    3,616.56x = 11,075,716.31
  5. Step 5: Solve for x
    x = 11,075,716.31/3,616.56
  6. Step 6: Final answer
    x = 3,062.50

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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.