Home / 4,279.81-6,419.94-1,358.34

Finding the Fourth Proportional to 4,279.81, 6,419.94 and 1,358.34

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Solution

The fourth proportional to 4,279.81, 6,419.94 and 1,358.34 is: 2,037.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.81 : 6,419.94 = 1,358.34 : x
  2. Step 2: Convert to fraction form
    4,279.81/6,419.94 = 1,358.34/x
  3. Step 3: Cross multiply
    4,279.81x = 6,419.94 × 1,358.34
  4. Step 4: Simplify right side
    4,279.81x = 8,720,422.41
  5. Step 5: Solve for x
    x = 8,720,422.41/4,279.81
  6. Step 6: Final answer
    x = 2,037.57

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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.