Home / 5,189.79-7,782.98-2,068.86

Finding the Fourth Proportional to 5,189.79, 7,782.98 and 2,068.86

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Solution

The fourth proportional to 5,189.79, 7,782.98 and 2,068.86 is: 3,102.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.79 : 7,782.98 = 2,068.86 : x
  2. Step 2: Convert to fraction form
    5,189.79/7,782.98 = 2,068.86/x
  3. Step 3: Cross multiply
    5,189.79x = 7,782.98 × 2,068.86
  4. Step 4: Simplify right side
    5,189.79x = 16,101,885.66
  5. Step 5: Solve for x
    x = 16,101,885.66/5,189.79
  6. Step 6: Final answer
    x = 3,102.61

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1.5x scale

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.