Home / 5,102.68-7,040.48-3,112.51

Finding the Fourth Proportional to 5,102.68, 7,040.48 and 3,112.51

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Solution

The fourth proportional to 5,102.68, 7,040.48 and 3,112.51 is: 4,294.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.68 : 7,040.48 = 3,112.51 : x
  2. Step 2: Convert to fraction form
    5,102.68/7,040.48 = 3,112.51/x
  3. Step 3: Cross multiply
    5,102.68x = 7,040.48 × 3,112.51
  4. Step 4: Simplify right side
    5,102.68x = 21,913,564.40
  5. Step 5: Solve for x
    x = 21,913,564.40/5,102.68
  6. Step 6: Final answer
    x = 4,294.52

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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.