Home / 3,339.05-5,007.51-1,390.77

Finding the Fourth Proportional to 3,339.05, 5,007.51 and 1,390.77

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Solution

The fourth proportional to 3,339.05, 5,007.51 and 1,390.77 is: 2,085.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.05 : 5,007.51 = 1,390.77 : x
  2. Step 2: Convert to fraction form
    3,339.05/5,007.51 = 1,390.77/x
  3. Step 3: Cross multiply
    3,339.05x = 5,007.51 × 1,390.77
  4. Step 4: Simplify right side
    3,339.05x = 6,964,294.68
  5. Step 5: Solve for x
    x = 6,964,294.68/3,339.05
  6. Step 6: Final answer
    x = 2,085.71

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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.