Home / 3,956.80-5,460.47-2,188.53

Finding the Fourth Proportional to 3,956.80, 5,460.47 and 2,188.53

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Solution

The fourth proportional to 3,956.80, 5,460.47 and 2,188.53 is: 3,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.80 : 5,460.47 = 2,188.53 : x
  2. Step 2: Convert to fraction form
    3,956.80/5,460.47 = 2,188.53/x
  3. Step 3: Cross multiply
    3,956.80x = 5,460.47 × 2,188.53
  4. Step 4: Simplify right side
    3,956.80x = 11,950,402.41
  5. Step 5: Solve for x
    x = 11,950,402.41/3,956.80
  6. Step 6: Final answer
    x = 3,020.22

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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.