Home / 5,459.30-8,190.09-1,761.90

Finding the Fourth Proportional to 5,459.30, 8,190.09 and 1,761.90

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Solution

The fourth proportional to 5,459.30, 8,190.09 and 1,761.90 is: 2,643.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.30 : 8,190.09 = 1,761.90 : x
  2. Step 2: Convert to fraction form
    5,459.30/8,190.09 = 1,761.90/x
  3. Step 3: Cross multiply
    5,459.30x = 8,190.09 × 1,761.90
  4. Step 4: Simplify right side
    5,459.30x = 14,430,119.57
  5. Step 5: Solve for x
    x = 14,430,119.57/5,459.30
  6. Step 6: Final answer
    x = 2,643.22

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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.