Home / 1,845.47-2,755.97-1,621.91

Finding the Fourth Proportional to 1,845.47, 2,755.97 and 1,621.91

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Solution

The fourth proportional to 1,845.47, 2,755.97 and 1,621.91 is: 2,422.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.47 : 2,755.97 = 1,621.91 : x
  2. Step 2: Convert to fraction form
    1,845.47/2,755.97 = 1,621.91/x
  3. Step 3: Cross multiply
    1,845.47x = 2,755.97 × 1,621.91
  4. Step 4: Simplify right side
    1,845.47x = 4,469,941.08
  5. Step 5: Solve for x
    x = 4,469,941.08/1,845.47
  6. Step 6: Final answer
    x = 2,422.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.