Home / 4,287.76-6,431.87-1,366.29

Finding the Fourth Proportional to 4,287.76, 6,431.87 and 1,366.29

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Solution

The fourth proportional to 4,287.76, 6,431.87 and 1,366.29 is: 2,049.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.76 : 6,431.87 = 1,366.29 : x
  2. Step 2: Convert to fraction form
    4,287.76/6,431.87 = 1,366.29/x
  3. Step 3: Cross multiply
    4,287.76x = 6,431.87 × 1,366.29
  4. Step 4: Simplify right side
    4,287.76x = 8,787,803.08
  5. Step 5: Solve for x
    x = 8,787,803.08/4,287.76
  6. Step 6: Final answer
    x = 2,049.51

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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.