Home / 3,992.48-5,509.86-2,313.35

Finding the Fourth Proportional to 3,992.48, 5,509.86 and 2,313.35

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Solution

The fourth proportional to 3,992.48, 5,509.86 and 2,313.35 is: 3,192.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.48 : 5,509.86 = 2,313.35 : x
  2. Step 2: Convert to fraction form
    3,992.48/5,509.86 = 2,313.35/x
  3. Step 3: Cross multiply
    3,992.48x = 5,509.86 × 2,313.35
  4. Step 4: Simplify right side
    3,992.48x = 12,746,234.63
  5. Step 5: Solve for x
    x = 12,746,234.63/3,992.48
  6. Step 6: Final answer
    x = 3,192.56

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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.