Home / 4,145.99-5,721.49-2,257.60

Finding the Fourth Proportional to 4,145.99, 5,721.49 and 2,257.60

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Solution

The fourth proportional to 4,145.99, 5,721.49 and 2,257.60 is: 3,115.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.99 : 5,721.49 = 2,257.60 : x
  2. Step 2: Convert to fraction form
    4,145.99/5,721.49 = 2,257.60/x
  3. Step 3: Cross multiply
    4,145.99x = 5,721.49 × 2,257.60
  4. Step 4: Simplify right side
    4,145.99x = 12,916,835.82
  5. Step 5: Solve for x
    x = 12,916,835.82/4,145.99
  6. Step 6: Final answer
    x = 3,115.50

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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.