Home / 3,718.76-5,126.82-2,669

Finding the Fourth Proportional to 3,718.76, 5,126.82 and 2,669

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Solution

The fourth proportional to 3,718.76, 5,126.82 and 2,669 is: 3,679.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.76 : 5,126.82 = 2,669 : x
  2. Step 2: Convert to fraction form
    3,718.76/5,126.82 = 2,669/x
  3. Step 3: Cross multiply
    3,718.76x = 5,126.82 × 2,669
  4. Step 4: Simplify right side
    3,718.76x = 13,683,482.58
  5. Step 5: Solve for x
    x = 13,683,482.58/3,718.76
  6. Step 6: Final answer
    x = 3,679.58

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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.