Home / 5,126.48-7,686.99-2,655.17

Finding the Fourth Proportional to 5,126.48, 7,686.99 and 2,655.17

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Solution

The fourth proportional to 5,126.48, 7,686.99 and 2,655.17 is: 3,981.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.48 : 7,686.99 = 2,655.17 : x
  2. Step 2: Convert to fraction form
    5,126.48/7,686.99 = 2,655.17/x
  3. Step 3: Cross multiply
    5,126.48x = 7,686.99 × 2,655.17
  4. Step 4: Simplify right side
    5,126.48x = 20,410,297.38
  5. Step 5: Solve for x
    x = 20,410,297.38/5,126.48
  6. Step 6: Final answer
    x = 3,981.34

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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.