Home / 3,389.48-5,083.49-1,308.80

Finding the Fourth Proportional to 3,389.48, 5,083.49 and 1,308.80

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Solution

The fourth proportional to 3,389.48, 5,083.49 and 1,308.80 is: 1,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.48 : 5,083.49 = 1,308.80 : x
  2. Step 2: Convert to fraction form
    3,389.48/5,083.49 = 1,308.80/x
  3. Step 3: Cross multiply
    3,389.48x = 5,083.49 × 1,308.80
  4. Step 4: Simplify right side
    3,389.48x = 6,653,239.75
  5. Step 5: Solve for x
    x = 6,653,239.75/3,389.48
  6. Step 6: Final answer
    x = 1,962.91

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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.