Home / 5,127.96-7,076.82-2,859.45

Finding the Fourth Proportional to 5,127.96, 7,076.82 and 2,859.45

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Solution

The fourth proportional to 5,127.96, 7,076.82 and 2,859.45 is: 3,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.96 : 7,076.82 = 2,859.45 : x
  2. Step 2: Convert to fraction form
    5,127.96/7,076.82 = 2,859.45/x
  3. Step 3: Cross multiply
    5,127.96x = 7,076.82 × 2,859.45
  4. Step 4: Simplify right side
    5,127.96x = 20,235,812.95
  5. Step 5: Solve for x
    x = 20,235,812.95/5,127.96
  6. Step 6: Final answer
    x = 3,946.17

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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.