Home / 3,995.57-5,988.06-2,121.08

Finding the Fourth Proportional to 3,995.57, 5,988.06 and 2,121.08

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Solution

The fourth proportional to 3,995.57, 5,988.06 and 2,121.08 is: 3,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.57 : 5,988.06 = 2,121.08 : x
  2. Step 2: Convert to fraction form
    3,995.57/5,988.06 = 2,121.08/x
  3. Step 3: Cross multiply
    3,995.57x = 5,988.06 × 2,121.08
  4. Step 4: Simplify right side
    3,995.57x = 12,701,124.36
  5. Step 5: Solve for x
    x = 12,701,124.36/3,995.57
  6. Step 6: Final answer
    x = 3,178.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.