Home / 3,619.84-4,996.40-2,127.84

Finding the Fourth Proportional to 3,619.84, 4,996.40 and 2,127.84

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Solution

The fourth proportional to 3,619.84, 4,996.40 and 2,127.84 is: 2,937.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.84 : 4,996.40 = 2,127.84 : x
  2. Step 2: Convert to fraction form
    3,619.84/4,996.40 = 2,127.84/x
  3. Step 3: Cross multiply
    3,619.84x = 4,996.40 × 2,127.84
  4. Step 4: Simplify right side
    3,619.84x = 10,631,539.78
  5. Step 5: Solve for x
    x = 10,631,539.78/3,619.84
  6. Step 6: Final answer
    x = 2,937.02

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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.