Home / 1,621.17-2,230.61-1,584.32

Finding the Fourth Proportional to 1,621.17, 2,230.61 and 1,584.32

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Solution

The fourth proportional to 1,621.17, 2,230.61 and 1,584.32 is: 2,179.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.17 : 2,230.61 = 1,584.32 : x
  2. Step 2: Convert to fraction form
    1,621.17/2,230.61 = 1,584.32/x
  3. Step 3: Cross multiply
    1,621.17x = 2,230.61 × 1,584.32
  4. Step 4: Simplify right side
    1,621.17x = 3,533,980.96
  5. Step 5: Solve for x
    x = 3,533,980.96/1,621.17
  6. Step 6: Final answer
    x = 2,179.90

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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.