Home / 2,195.30-3,031.20-1,450.28

Finding the Fourth Proportional to 2,195.30, 3,031.20 and 1,450.28

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Solution

The fourth proportional to 2,195.30, 3,031.20 and 1,450.28 is: 2,002.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.30 : 3,031.20 = 1,450.28 : x
  2. Step 2: Convert to fraction form
    2,195.30/3,031.20 = 1,450.28/x
  3. Step 3: Cross multiply
    2,195.30x = 3,031.20 × 1,450.28
  4. Step 4: Simplify right side
    2,195.30x = 4,396,083.71
  5. Step 5: Solve for x
    x = 4,396,083.71/2,195.30
  6. Step 6: Final answer
    x = 2,002.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.