Home / 4,090.88-6,136.46-1,317.51

Finding the Fourth Proportional to 4,090.88, 6,136.46 and 1,317.51

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Solution

The fourth proportional to 4,090.88, 6,136.46 and 1,317.51 is: 1,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.88 : 6,136.46 = 1,317.51 : x
  2. Step 2: Convert to fraction form
    4,090.88/6,136.46 = 1,317.51/x
  3. Step 3: Cross multiply
    4,090.88x = 6,136.46 × 1,317.51
  4. Step 4: Simplify right side
    4,090.88x = 8,084,847.41
  5. Step 5: Solve for x
    x = 8,084,847.41/4,090.88
  6. Step 6: Final answer
    x = 1,976.31

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Double scale
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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.