Home / 5,090.89-7,636.33-1,392.97

Finding the Fourth Proportional to 5,090.89, 7,636.33 and 1,392.97

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Solution

The fourth proportional to 5,090.89, 7,636.33 and 1,392.97 is: 2,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090.89 : 7,636.33 = 1,392.97 : x
  2. Step 2: Convert to fraction form
    5,090.89/7,636.33 = 1,392.97/x
  3. Step 3: Cross multiply
    5,090.89x = 7,636.33 × 1,392.97
  4. Step 4: Simplify right side
    5,090.89x = 10,637,136.94
  5. Step 5: Solve for x
    x = 10,637,136.94/5,090.89
  6. Step 6: Final answer
    x = 2,089.45

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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.