Home / 1,621.02-2,222.46-1,591.86

Finding the Fourth Proportional to 1,621.02, 2,222.46 and 1,591.86

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Solution

The fourth proportional to 1,621.02, 2,222.46 and 1,591.86 is: 2,182.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.02 : 2,222.46 = 1,591.86 : x
  2. Step 2: Convert to fraction form
    1,621.02/2,222.46 = 1,591.86/x
  3. Step 3: Cross multiply
    1,621.02x = 2,222.46 × 1,591.86
  4. Step 4: Simplify right side
    1,621.02x = 3,537,845.18
  5. Step 5: Solve for x
    x = 3,537,845.18/1,621.02
  6. Step 6: Final answer
    x = 2,182.48

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.