Home / 5,157.81-7,119.09-3,270.51

Finding the Fourth Proportional to 5,157.81, 7,119.09 and 3,270.51

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Solution

The fourth proportional to 5,157.81, 7,119.09 and 3,270.51 is: 4,514.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.81 : 7,119.09 = 3,270.51 : x
  2. Step 2: Convert to fraction form
    5,157.81/7,119.09 = 3,270.51/x
  3. Step 3: Cross multiply
    5,157.81x = 7,119.09 × 3,270.51
  4. Step 4: Simplify right side
    5,157.81x = 23,283,055.04
  5. Step 5: Solve for x
    x = 23,283,055.04/5,157.81
  6. Step 6: Final answer
    x = 4,514.14

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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.