Home / 4,990.08-6,885.30-3,126

Finding the Fourth Proportional to 4,990.08, 6,885.30 and 3,126

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Solution

The fourth proportional to 4,990.08, 6,885.30 and 3,126 is: 4,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.08 : 6,885.30 = 3,126 : x
  2. Step 2: Convert to fraction form
    4,990.08/6,885.30 = 3,126/x
  3. Step 3: Cross multiply
    4,990.08x = 6,885.30 × 3,126
  4. Step 4: Simplify right side
    4,990.08x = 21,523,447.80
  5. Step 5: Solve for x
    x = 21,523,447.80/4,990.08
  6. Step 6: Final answer
    x = 4,313.25

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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.