Home / 3,992.13-5,509.98-2,498.90

Finding the Fourth Proportional to 3,992.13, 5,509.98 and 2,498.90

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Solution

The fourth proportional to 3,992.13, 5,509.98 and 2,498.90 is: 3,449.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.13 : 5,509.98 = 2,498.90 : x
  2. Step 2: Convert to fraction form
    3,992.13/5,509.98 = 2,498.90/x
  3. Step 3: Cross multiply
    3,992.13x = 5,509.98 × 2,498.90
  4. Step 4: Simplify right side
    3,992.13x = 13,768,861.47
  5. Step 5: Solve for x
    x = 13,768,861.47/3,992.13
  6. Step 6: Final answer
    x = 3,449.00

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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.