Home / 3,992.64-5,508.85-2,223.80

Finding the Fourth Proportional to 3,992.64, 5,508.85 and 2,223.80

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Solution

The fourth proportional to 3,992.64, 5,508.85 and 2,223.80 is: 3,068.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.64 : 5,508.85 = 2,223.80 : x
  2. Step 2: Convert to fraction form
    3,992.64/5,508.85 = 2,223.80/x
  3. Step 3: Cross multiply
    3,992.64x = 5,508.85 × 2,223.80
  4. Step 4: Simplify right side
    3,992.64x = 12,250,580.63
  5. Step 5: Solve for x
    x = 12,250,580.63/3,992.64
  6. Step 6: Final answer
    x = 3,068.29

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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.