Home / 3,992.30-5,509.54-2,223.91

Finding the Fourth Proportional to 3,992.30, 5,509.54 and 2,223.91

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Solution

The fourth proportional to 3,992.30, 5,509.54 and 2,223.91 is: 3,069.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.30 : 5,509.54 = 2,223.91 : x
  2. Step 2: Convert to fraction form
    3,992.30/5,509.54 = 2,223.91/x
  3. Step 3: Cross multiply
    3,992.30x = 5,509.54 × 2,223.91
  4. Step 4: Simplify right side
    3,992.30x = 12,252,693.55
  5. Step 5: Solve for x
    x = 12,252,693.55/3,992.30
  6. Step 6: Final answer
    x = 3,069.08

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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.