Home / 5,378.44-8,070.90-2,091.88

Finding the Fourth Proportional to 5,378.44, 8,070.90 and 2,091.88

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Solution

The fourth proportional to 5,378.44, 8,070.90 and 2,091.88 is: 3,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.44 : 8,070.90 = 2,091.88 : x
  2. Step 2: Convert to fraction form
    5,378.44/8,070.90 = 2,091.88/x
  3. Step 3: Cross multiply
    5,378.44x = 8,070.90 × 2,091.88
  4. Step 4: Simplify right side
    5,378.44x = 16,883,354.29
  5. Step 5: Solve for x
    x = 16,883,354.29/5,378.44
  6. Step 6: Final answer
    x = 3,139.08

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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.