Home / 3,619.20-4,994.64-2,127.18

Finding the Fourth Proportional to 3,619.20, 4,994.64 and 2,127.18

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Solution

The fourth proportional to 3,619.20, 4,994.64 and 2,127.18 is: 2,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.20 : 4,994.64 = 2,127.18 : x
  2. Step 2: Convert to fraction form
    3,619.20/4,994.64 = 2,127.18/x
  3. Step 3: Cross multiply
    3,619.20x = 4,994.64 × 2,127.18
  4. Step 4: Simplify right side
    3,619.20x = 10,624,498.32
  5. Step 5: Solve for x
    x = 10,624,498.32/3,619.20
  6. Step 6: Final answer
    x = 2,935.59

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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.