Home / 5,127.67-7,076.19-2,769.81

Finding the Fourth Proportional to 5,127.67, 7,076.19 and 2,769.81

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Solution

The fourth proportional to 5,127.67, 7,076.19 and 2,769.81 is: 3,822.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.67 : 7,076.19 = 2,769.81 : x
  2. Step 2: Convert to fraction form
    5,127.67/7,076.19 = 2,769.81/x
  3. Step 3: Cross multiply
    5,127.67x = 7,076.19 × 2,769.81
  4. Step 4: Simplify right side
    5,127.67x = 19,599,719.51
  5. Step 5: Solve for x
    x = 19,599,719.51/5,127.67
  6. Step 6: Final answer
    x = 3,822.34

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1.5x scale

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.