Home / 3,621.06-4,996.98-2,128.65

Finding the Fourth Proportional to 3,621.06, 4,996.98 and 2,128.65

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Solution

The fourth proportional to 3,621.06, 4,996.98 and 2,128.65 is: 2,937.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.06 : 4,996.98 = 2,128.65 : x
  2. Step 2: Convert to fraction form
    3,621.06/4,996.98 = 2,128.65/x
  3. Step 3: Cross multiply
    3,621.06x = 4,996.98 × 2,128.65
  4. Step 4: Simplify right side
    3,621.06x = 10,636,821.48
  5. Step 5: Solve for x
    x = 10,636,821.48/3,621.06
  6. Step 6: Final answer
    x = 2,937.49

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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.