Home / 4,286.64-6,425.28-1,686.72

Finding the Fourth Proportional to 4,286.64, 6,425.28 and 1,686.72

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Solution

The fourth proportional to 4,286.64, 6,425.28 and 1,686.72 is: 2,528.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.64 : 6,425.28 = 1,686.72 : x
  2. Step 2: Convert to fraction form
    4,286.64/6,425.28 = 1,686.72/x
  3. Step 3: Cross multiply
    4,286.64x = 6,425.28 × 1,686.72
  4. Step 4: Simplify right side
    4,286.64x = 10,837,648.28
  5. Step 5: Solve for x
    x = 10,837,648.28/4,286.64
  6. Step 6: Final answer
    x = 2,528.24

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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.