Home / 3,195.48-4,402.74-2,145.72

Finding the Fourth Proportional to 3,195.48, 4,402.74 and 2,145.72

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Solution

The fourth proportional to 3,195.48, 4,402.74 and 2,145.72 is: 2,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.48 : 4,402.74 = 2,145.72 : x
  2. Step 2: Convert to fraction form
    3,195.48/4,402.74 = 2,145.72/x
  3. Step 3: Cross multiply
    3,195.48x = 4,402.74 × 2,145.72
  4. Step 4: Simplify right side
    3,195.48x = 9,447,047.27
  5. Step 5: Solve for x
    x = 9,447,047.27/3,195.48
  6. Step 6: Final answer
    x = 2,956.38

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Half scale
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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.