Home / 4,286.46-6,429.63-1,689.42

Finding the Fourth Proportional to 4,286.46, 6,429.63 and 1,689.42

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Solution

The fourth proportional to 4,286.46, 6,429.63 and 1,689.42 is: 2,534.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.46 : 6,429.63 = 1,689.42 : x
  2. Step 2: Convert to fraction form
    4,286.46/6,429.63 = 1,689.42/x
  3. Step 3: Cross multiply
    4,286.46x = 6,429.63 × 1,689.42
  4. Step 4: Simplify right side
    4,286.46x = 10,862,345.51
  5. Step 5: Solve for x
    x = 10,862,345.51/4,286.46
  6. Step 6: Final answer
    x = 2,534.11

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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.