Home / 5,136.48-7,707.60-2,540.16

Finding the Fourth Proportional to 5,136.48, 7,707.60 and 2,540.16

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Solution

The fourth proportional to 5,136.48, 7,707.60 and 2,540.16 is: 3,811.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.48 : 7,707.60 = 2,540.16 : x
  2. Step 2: Convert to fraction form
    5,136.48/7,707.60 = 2,540.16/x
  3. Step 3: Cross multiply
    5,136.48x = 7,707.60 × 2,540.16
  4. Step 4: Simplify right side
    5,136.48x = 19,578,537.22
  5. Step 5: Solve for x
    x = 19,578,537.22/5,136.48
  6. Step 6: Final answer
    x = 3,811.66

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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.