Home / 3,142.32-4,719.96-2,170.32

Finding the Fourth Proportional to 3,142.32, 4,719.96 and 2,170.32

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Solution

The fourth proportional to 3,142.32, 4,719.96 and 2,170.32 is: 3,259.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.32 : 4,719.96 = 2,170.32 : x
  2. Step 2: Convert to fraction form
    3,142.32/4,719.96 = 2,170.32/x
  3. Step 3: Cross multiply
    3,142.32x = 4,719.96 × 2,170.32
  4. Step 4: Simplify right side
    3,142.32x = 10,243,823.59
  5. Step 5: Solve for x
    x = 10,243,823.59/3,142.32
  6. Step 6: Final answer
    x = 3,259.96

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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.