Home / 2,630.44-3,948.23-2,172.88

Finding the Fourth Proportional to 2,630.44, 3,948.23 and 2,172.88

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Solution

The fourth proportional to 2,630.44, 3,948.23 and 2,172.88 is: 3,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.44 : 3,948.23 = 2,172.88 : x
  2. Step 2: Convert to fraction form
    2,630.44/3,948.23 = 2,172.88/x
  3. Step 3: Cross multiply
    2,630.44x = 3,948.23 × 2,172.88
  4. Step 4: Simplify right side
    2,630.44x = 8,579,030.00
  5. Step 5: Solve for x
    x = 8,579,030.00/2,630.44
  6. Step 6: Final answer
    x = 3,261.44

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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.