Home / 1,339.54-2,013.39-1,310.83

Finding the Fourth Proportional to 1,339.54, 2,013.39 and 1,310.83

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Solution

The fourth proportional to 1,339.54, 2,013.39 and 1,310.83 is: 1,970.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.54 : 2,013.39 = 1,310.83 : x
  2. Step 2: Convert to fraction form
    1,339.54/2,013.39 = 1,310.83/x
  3. Step 3: Cross multiply
    1,339.54x = 2,013.39 × 1,310.83
  4. Step 4: Simplify right side
    1,339.54x = 2,639,206.98
  5. Step 5: Solve for x
    x = 2,639,206.98/1,339.54
  6. Step 6: Final answer
    x = 1,970.24

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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.