Home / 4,136.64-5,712.48-3,148.80

Finding the Fourth Proportional to 4,136.64, 5,712.48 and 3,148.80

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Solution

The fourth proportional to 4,136.64, 5,712.48 and 3,148.80 is: 4,348.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,136.64 : 5,712.48 = 3,148.80 : x
  2. Step 2: Convert to fraction form
    4,136.64/5,712.48 = 3,148.80/x
  3. Step 3: Cross multiply
    4,136.64x = 5,712.48 × 3,148.80
  4. Step 4: Simplify right side
    4,136.64x = 17,987,457.02
  5. Step 5: Solve for x
    x = 17,987,457.02/4,136.64
  6. Step 6: Final answer
    x = 4,348.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.