Home / 4,287.92-6,431.40-2,910.11

Finding the Fourth Proportional to 4,287.92, 6,431.40 and 2,910.11

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Solution

The fourth proportional to 4,287.92, 6,431.40 and 2,910.11 is: 4,364.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.92 : 6,431.40 = 2,910.11 : x
  2. Step 2: Convert to fraction form
    4,287.92/6,431.40 = 2,910.11/x
  3. Step 3: Cross multiply
    4,287.92x = 6,431.40 × 2,910.11
  4. Step 4: Simplify right side
    4,287.92x = 18,716,049.30
  5. Step 5: Solve for x
    x = 18,716,049.30/4,287.92
  6. Step 6: Final answer
    x = 4,364.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.