Home / 4,257.40-6,386.40-1,336.12

Finding the Fourth Proportional to 4,257.40, 6,386.40 and 1,336.12

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Solution

The fourth proportional to 4,257.40, 6,386.40 and 1,336.12 is: 2,004.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.40 : 6,386.40 = 1,336.12 : x
  2. Step 2: Convert to fraction form
    4,257.40/6,386.40 = 1,336.12/x
  3. Step 3: Cross multiply
    4,257.40x = 6,386.40 × 1,336.12
  4. Step 4: Simplify right side
    4,257.40x = 8,532,996.77
  5. Step 5: Solve for x
    x = 8,532,996.77/4,257.40
  6. Step 6: Final answer
    x = 2,004.27

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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.