Home / 4,287.64-6,431.41-1,366.20

Finding the Fourth Proportional to 4,287.64, 6,431.41 and 1,366.20

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Solution

The fourth proportional to 4,287.64, 6,431.41 and 1,366.20 is: 2,049.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.64 : 6,431.41 = 1,366.20 : x
  2. Step 2: Convert to fraction form
    4,287.64/6,431.41 = 1,366.20/x
  3. Step 3: Cross multiply
    4,287.64x = 6,431.41 × 1,366.20
  4. Step 4: Simplify right side
    4,287.64x = 8,786,592.34
  5. Step 5: Solve for x
    x = 8,786,592.34/4,287.64
  6. Step 6: Final answer
    x = 2,049.28

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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.