Home / 2,721.42-3,756.06-1,765.53

Finding the Fourth Proportional to 2,721.42, 3,756.06 and 1,765.53

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Solution

The fourth proportional to 2,721.42, 3,756.06 and 1,765.53 is: 2,436.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.42 : 3,756.06 = 1,765.53 : x
  2. Step 2: Convert to fraction form
    2,721.42/3,756.06 = 1,765.53/x
  3. Step 3: Cross multiply
    2,721.42x = 3,756.06 × 1,765.53
  4. Step 4: Simplify right side
    2,721.42x = 6,631,436.61
  5. Step 5: Solve for x
    x = 6,631,436.61/2,721.42
  6. Step 6: Final answer
    x = 2,436.76

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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.