Home / 2,155.03-3,232.68-694.20

Finding the Fourth Proportional to 2,155.03, 3,232.68 and 694.20

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Solution

The fourth proportional to 2,155.03, 3,232.68 and 694.20 is: 1,041.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.03 : 3,232.68 = 694.20 : x
  2. Step 2: Convert to fraction form
    2,155.03/3,232.68 = 694.20/x
  3. Step 3: Cross multiply
    2,155.03x = 3,232.68 × 694.20
  4. Step 4: Simplify right side
    2,155.03x = 2,244,126.46
  5. Step 5: Solve for x
    x = 2,244,126.46/2,155.03
  6. Step 6: Final answer
    x = 1,041.34

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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.