Home / 3,339.29-5,009.48-1,391.69

Finding the Fourth Proportional to 3,339.29, 5,009.48 and 1,391.69

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Solution

The fourth proportional to 3,339.29, 5,009.48 and 1,391.69 is: 2,087.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.29 : 5,009.48 = 1,391.69 : x
  2. Step 2: Convert to fraction form
    3,339.29/5,009.48 = 1,391.69/x
  3. Step 3: Cross multiply
    3,339.29x = 5,009.48 × 1,391.69
  4. Step 4: Simplify right side
    3,339.29x = 6,971,636.26
  5. Step 5: Solve for x
    x = 6,971,636.26/3,339.29
  6. Step 6: Final answer
    x = 2,087.76

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1.5x scale

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.