Home / 4,286.24-6,430.35-1,324.57

Finding the Fourth Proportional to 4,286.24, 6,430.35 and 1,324.57

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Solution

The fourth proportional to 4,286.24, 6,430.35 and 1,324.57 is: 1,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.24 : 6,430.35 = 1,324.57 : x
  2. Step 2: Convert to fraction form
    4,286.24/6,430.35 = 1,324.57/x
  3. Step 3: Cross multiply
    4,286.24x = 6,430.35 × 1,324.57
  4. Step 4: Simplify right side
    4,286.24x = 8,517,448.70
  5. Step 5: Solve for x
    x = 8,517,448.70/4,286.24
  6. Step 6: Final answer
    x = 1,987.16

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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.