Home / 2,090.60-3,136.22-1,225.32

Finding the Fourth Proportional to 2,090.60, 3,136.22 and 1,225.32

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Solution

The fourth proportional to 2,090.60, 3,136.22 and 1,225.32 is: 1,838.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,090.60 : 3,136.22 = 1,225.32 : x
  2. Step 2: Convert to fraction form
    2,090.60/3,136.22 = 1,225.32/x
  3. Step 3: Cross multiply
    2,090.60x = 3,136.22 × 1,225.32
  4. Step 4: Simplify right side
    2,090.60x = 3,842,873.09
  5. Step 5: Solve for x
    x = 3,842,873.09/2,090.60
  6. Step 6: Final answer
    x = 1,838.17

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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.