Home / 5,619.40-7,755.06-3,381.98

Finding the Fourth Proportional to 5,619.40, 7,755.06 and 3,381.98

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Solution

The fourth proportional to 5,619.40, 7,755.06 and 3,381.98 is: 4,667.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.40 : 7,755.06 = 3,381.98 : x
  2. Step 2: Convert to fraction form
    5,619.40/7,755.06 = 3,381.98/x
  3. Step 3: Cross multiply
    5,619.40x = 7,755.06 × 3,381.98
  4. Step 4: Simplify right side
    5,619.40x = 26,227,457.82
  5. Step 5: Solve for x
    x = 26,227,457.82/5,619.40
  6. Step 6: Final answer
    x = 4,667.31

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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.