Home / 2,517.54-3,475.79-1,621.68

Finding the Fourth Proportional to 2,517.54, 3,475.79 and 1,621.68

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Solution

The fourth proportional to 2,517.54, 3,475.79 and 1,621.68 is: 2,238.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.54 : 3,475.79 = 1,621.68 : x
  2. Step 2: Convert to fraction form
    2,517.54/3,475.79 = 1,621.68/x
  3. Step 3: Cross multiply
    2,517.54x = 3,475.79 × 1,621.68
  4. Step 4: Simplify right side
    2,517.54x = 5,636,611.02
  5. Step 5: Solve for x
    x = 5,636,611.02/2,517.54
  6. Step 6: Final answer
    x = 2,238.94

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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.