Home / 1,621.08-2,431.80-466.92

Finding the Fourth Proportional to 1,621.08, 2,431.80 and 466.92

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Solution

The fourth proportional to 1,621.08, 2,431.80 and 466.92 is: 700.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.08 : 2,431.80 = 466.92 : x
  2. Step 2: Convert to fraction form
    1,621.08/2,431.80 = 466.92/x
  3. Step 3: Cross multiply
    1,621.08x = 2,431.80 × 466.92
  4. Step 4: Simplify right side
    1,621.08x = 1,135,456.06
  5. Step 5: Solve for x
    x = 1,135,456.06/1,621.08
  6. Step 6: Final answer
    x = 700.43

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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.