Home / 4,260.17-6,390.53-1,338.59

Finding the Fourth Proportional to 4,260.17, 6,390.53 and 1,338.59

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Solution

The fourth proportional to 4,260.17, 6,390.53 and 1,338.59 is: 2,007.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.17 : 6,390.53 = 1,338.59 : x
  2. Step 2: Convert to fraction form
    4,260.17/6,390.53 = 1,338.59/x
  3. Step 3: Cross multiply
    4,260.17x = 6,390.53 × 1,338.59
  4. Step 4: Simplify right side
    4,260.17x = 8,554,260.91
  5. Step 5: Solve for x
    x = 8,554,260.91/4,260.17
  6. Step 6: Final answer
    x = 2,007.96

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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.