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Finding the Fourth Proportional to 2,995.45, 4,495.20 and 1,679.20

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Solution

The fourth proportional to 2,995.45, 4,495.20 and 1,679.20 is: 2,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.45 : 4,495.20 = 1,679.20 : x
  2. Step 2: Convert to fraction form
    2,995.45/4,495.20 = 1,679.20/x
  3. Step 3: Cross multiply
    2,995.45x = 4,495.20 × 1,679.20
  4. Step 4: Simplify right side
    2,995.45x = 7,548,339.84
  5. Step 5: Solve for x
    x = 7,548,339.84/2,995.45
  6. Step 6: Final answer
    x = 2,519.94

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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.