Home / 3,619.65-4,994.69-2,127.45

Finding the Fourth Proportional to 3,619.65, 4,994.69 and 2,127.45

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Solution

The fourth proportional to 3,619.65, 4,994.69 and 2,127.45 is: 2,935.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.65 : 4,994.69 = 2,127.45 : x
  2. Step 2: Convert to fraction form
    3,619.65/4,994.69 = 2,127.45/x
  3. Step 3: Cross multiply
    3,619.65x = 4,994.69 × 2,127.45
  4. Step 4: Simplify right side
    3,619.65x = 10,625,942.60
  5. Step 5: Solve for x
    x = 10,625,942.60/3,619.65
  6. Step 6: Final answer
    x = 2,935.63

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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.