Home / 5,459.74-8,189.32-1,761.90

Finding the Fourth Proportional to 5,459.74, 8,189.32 and 1,761.90

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Solution

The fourth proportional to 5,459.74, 8,189.32 and 1,761.90 is: 2,642.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,459.74 : 8,189.32 = 1,761.90 : x
  2. Step 2: Convert to fraction form
    5,459.74/8,189.32 = 1,761.90/x
  3. Step 3: Cross multiply
    5,459.74x = 8,189.32 × 1,761.90
  4. Step 4: Simplify right side
    5,459.74x = 14,428,762.91
  5. Step 5: Solve for x
    x = 14,428,762.91/5,459.74
  6. Step 6: Final answer
    x = 2,642.76

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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.