Home / 5,190.30-7,776.90-2,995.20

Finding the Fourth Proportional to 5,190.30, 7,776.90 and 2,995.20

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Solution

The fourth proportional to 5,190.30, 7,776.90 and 2,995.20 is: 4,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.30 : 7,776.90 = 2,995.20 : x
  2. Step 2: Convert to fraction form
    5,190.30/7,776.90 = 2,995.20/x
  3. Step 3: Cross multiply
    5,190.30x = 7,776.90 × 2,995.20
  4. Step 4: Simplify right side
    5,190.30x = 23,293,370.88
  5. Step 5: Solve for x
    x = 23,293,370.88/5,190.30
  6. Step 6: Final answer
    x = 4,487.87

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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.