Home / 5,108.75-7,664.95-2,513.51

Finding the Fourth Proportional to 5,108.75, 7,664.95 and 2,513.51

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Solution

The fourth proportional to 5,108.75, 7,664.95 and 2,513.51 is: 3,771.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.75 : 7,664.95 = 2,513.51 : x
  2. Step 2: Convert to fraction form
    5,108.75/7,664.95 = 2,513.51/x
  3. Step 3: Cross multiply
    5,108.75x = 7,664.95 × 2,513.51
  4. Step 4: Simplify right side
    5,108.75x = 19,265,928.47
  5. Step 5: Solve for x
    x = 19,265,928.47/5,108.75
  6. Step 6: Final answer
    x = 3,771.16

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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.