Home / 5,136.36-7,090.07-3,720.48

Finding the Fourth Proportional to 5,136.36, 7,090.07 and 3,720.48

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Solution

The fourth proportional to 5,136.36, 7,090.07 and 3,720.48 is: 5,135.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.36 : 7,090.07 = 3,720.48 : x
  2. Step 2: Convert to fraction form
    5,136.36/7,090.07 = 3,720.48/x
  3. Step 3: Cross multiply
    5,136.36x = 7,090.07 × 3,720.48
  4. Step 4: Simplify right side
    5,136.36x = 26,378,445.03
  5. Step 5: Solve for x
    x = 26,378,445.03/5,136.36
  6. Step 6: Final answer
    x = 5,135.63

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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.