Home / 3,619.10-4,993.70-2,127.08

Finding the Fourth Proportional to 3,619.10, 4,993.70 and 2,127.08

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Solution

The fourth proportional to 3,619.10, 4,993.70 and 2,127.08 is: 2,934.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.10 : 4,993.70 = 2,127.08 : x
  2. Step 2: Convert to fraction form
    3,619.10/4,993.70 = 2,127.08/x
  3. Step 3: Cross multiply
    3,619.10x = 4,993.70 × 2,127.08
  4. Step 4: Simplify right side
    3,619.10x = 10,621,963.79
  5. Step 5: Solve for x
    x = 10,621,963.79/3,619.10
  6. Step 6: Final answer
    x = 2,934.98

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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.